Officers evacuate bodies of victims from the Radisson Blu hotel in Bamako on November 20, 2015, after the assault of security forces. Malian forces backed by French troops stormed the Radisson Blu hotel in the capital Bamako after suspected Islamist gunmen seized guests and staff in a nine-hour hostage crisis that left at least 18 people dead. UN Secretary-General Ban Ki-moon condemned the "horrific terrorist attack" on November 20, and indicated the violence was aimed at destroying peace efforts in the country. AFP PHOTO / HABIBOU KOUYATE        (Photo credit should read HABIBOU KOUYATE/AFP/Getty Images)
Officers evacuate bodies of victims from the Radisson Blu hotel in Bamako on November 20, 2015, after the assault of security forces. Malian forces backed by French troops stormed the Radisson Blu hotel in the capital Bamako after suspected Islamist gunmen seized guests and staff in a nine-hour hostage crisis that left at least 18 people dead. UN Secretary-General Ban Ki-moon condemned the "horrific terrorist attack" on November 20, and indicated the violence was aimed at destroying peace efforts in the country. AFP PHOTO / HABIBOU KOUYATE (Photo credit should read HABIBOU KOUYATE/AFP/Getty Images)
PHOTO: HABIBOU KOUYATE/AFP/Getty Images
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Story highlights

NEW: President Barack Obama says victims were "innocent people with everything to live for"

Islamist group sends claim of responsibility to news agency in Mauritania

Diplomats were at the hotel for meetings on peace process

(CNN) —  

Heavily armed gunmen on Friday fired indiscriminately at guests at a hotel hosting diplomats and others in Mali’s capital, the maître d’ told CNN.

At least 21 people were killed in the attack in which an al Qaeda-affiliated group is taking partial responsibility.

“These people started shooting. They were shooting at everybody without asking a single question. They were shooting at anything that moved.”

One man did yell “Allahu akbar,” said Couye, who was working in the restaurant where breakfast was underway. The attackers sounded like they were from northern Mali, he told “Erin Burnett OutFront.”

Couye said an attacker chased him from the hotel but he came back later to help because his instincts told him he needed to do so to save lives.

Dozens of people were trapped in the building for hours, officials in the West African nation said, before Malian and U.N. security forces launched a counterattack and rushed guests away.

Olivier Salgado, a spokesman for the United Nations peacekeeping mission in Mali, put the death toll at 21.

At least six people injured in the attack have been hospitalized, Health Minister Marie Madeleine Togo told state broadcaster ORTM.

Al Mourabitoun, an Islamist militant group, claimed it was jointly responsible for the attack, according to Mauritanian news agency Al Akhbar. The group announced it carried out the attack with al Qaeda in the Islamic Maghreb (AQIM), the news agency reported.

It said the attack was retaliation for government aggression in northern Mali, Al Akhbar reported. The group also demanded the release of prisoners in France.

Algerian jihadist and leader of the group, Mokhtar Belmokhtar, may be behind the attack, French Defense Minister Jean-Yves Le Drian told France’s TF1. But he said France was not sure.

Belmokhtar was targeted in a U.S. airstrike in Libya in June. While Libyan officials said he had been killed, their U.S. counterparts never confirmed his death publicly.

Terror in Mali: Seven things you need to know

Hotel was hosting peace negotiators

The assault began about 7 a.m., when two or three attackers with AK-47 rifles exited at least one vehicle with diplomatic plates and entered the hotel with guns firing, Salgado said.

The attack, Salgado said, came as the hotel hosted diplomatic delegations working on a peace process in the landlocked country, a former French colony that has been battling Islamist extremists with the help of U.N. and French forces.

The Radisson chain said that as many as 170 people – 140 guests and 30 employees – had been there as the attack began.

Malian soldiers and U.N. troops had the hotel surrounded, a journalist for ORTM told CNN from the scene. Two security personnel were injured, Security Minister Salif Traore said on ORTM.

“We’re still hearing erratic gunfire,” journalist Katarina Hoije told CNN from near the scene Friday afternoon.

No group immediately claimed responsibility for the attack.

The Radisson Blu Hotel is in an upscale neighborhood outside the center of Bamako, rising high above the dusty streets and surrounding houses. With 190 rooms and suites, it is known as a hub for international guests such as diplomats and businesspeople, and it is a 15-minute drive from Bamako-Senou International Airport.

Why terrorists target hotels

Mongi Hamdi, head of the U.N. mission in Mali, said the diplomats’ meetings may be a likely reason why the hotel was targeted.

“I think this attack has been perpetrated by negative forces, terrorists, who do not want to see peace in Mali,” Hamdi said.

U.S. President Barack Obama said Saturday that the United States is still accounting for Americans who may have been inside the hotel.

Speaking in Malaysia, U.S. President Barack Obama said swift action of Malian and other security forces saved lives. He said the victims were “innocent people who had everything to live for.”

Mali’s struggle for stability

The hotel attack, and the diplomats’ meeting, came in a country that has struggled with Islamist extremists, especially since 2012.

After a March 2012 military coup plunged the country into chaos, Islamist extremists with links to al Qaeda carved out a large portion of northern Mali for themselves.

The ground and air campaign sent Islamist fighters who had seized the northern region fleeing into the vast desert. The United Nations then established a peacekeeping mission in Mali that year, hoping to keep the government secure enough to continue a peace process.

Though military pressure largely drove Islamist militants from cities, they regrouped in the desert areas, said J. Peter Pham, director of the Africa Center at the Washington-based Atlantic Council.

“Unfortunately, this (hotel) is a likely target” because it is popular with international guests, Pham said.

France sends paramilitary group

France said it dispatched to Mali an elite paramilitary group trained in hostage rescue and counterterrorism operations. President Francois Hollande, speaking to reporters in Paris, pledged to provide “necessary support” to help Mali resolve the situation.

U.S. special operations forces were helping “move civilians to secured locations as Malian forces clear the hotel of hostile gunmen,” said Lt. Cmdr. Anthony Falvo, a spokesman for U.S. Africa Command.

A day before the attack, French President Francois Hollande praised his troops for fighting Islamists in the former French colony. It also came a week after ISIS targeted France with shootings and suicide bombings, killing 130 people.

’I saw … bullets’

Michael Skapoullis, who lives near the Radisson Blu, told CNN he was using the hotel’s gym Friday morning when he noticed fellow exercisers leaving. He hadn’t heard anything because he was listening to music, but he decided to follow.

He walked to a door leading to the hotel lobby, and that’s when he saw something was wrong.

“When I opened the door, I saw, on the floor, bullets,” Skapoullis said. “So I gently closed the door, and … I went back into the gym” and eventually left the complex.

Another man who’d been in the hotel told ORTM that he heard gunshots that he initially thought were fireworks.

“Then we heard the hotel alarm. … I walked out into the hallway, and I saw a lot of smoke,” said the man, whom ORTM didn’t name. “Then I went back into my room to stay there.

“Later, the Malian forces came to get us. … Thank God we are now healthy and safe.”

Victims were from all over the world

As news of the attack spread, officials from various nations accounted for their citizens.

• One U.S. citizen was killed, a senior State Department official told CNN. “We express our deepest condolences to the family and friends of the deceased. … Out of respect for the family, we have no further information at this time.” Of Anita Datar, her brother Sanjeev Datar, said. “Everything she did in her life she did to help others – as a mother, public health expert, daughter, sister and friend.”

• “About a dozen” Americans were rescued, U.S. State Department spokesman John Kirby said.

The victims also include Geoffrey Dieudonne, an administrative counselor for Belgium’s Parliament. He was in Bamako as part of a three-day French-language convention.

• Three Chinese nationals were killed, the political counselor at the Chinese Embassy in Bamako told media in his country. State-run CCTV reported that four other Chinese guests were rescued.

• Seven Algerians, including six members of an Algerian diplomatic delegation, are safe after being trapped in the hotel, the state-run Algerie Presse Service reported. The Algerians were freed during a counterassault by U.N. and Malian forces.

• Twenty Indian nationals, working for a Dubai-based company and staying at the hotel long-term, were safely evacuated, Vikas Swarup, a spokesman for India’s Ministry of External Affairs, said on Twitter.

• Twelve Air France crew members who were staying at the hotel were safely extracted, the airline tweeted. Air France has canceled all its flights to and from Bamako as a precaution, the airline said.

• Turkish Airlines said at seven of its employees were staying at the hotel, and all had been freed by the afternoon.

• Two German nationals were able to leave the hotel, Germany’s Foreign Office said.

August attack

Mali: The long, troubled desert road ahead

In August, 12 people were killed in a hostage situation at a hotel in central Mali.

Soldiers stormed the hotel in Sevare to end the daylong siege that started when gunmen raided the hotel after attacking a military site nearby.

At the time, Mali said the attackers were affiliated with the Macina Liberation Movement, an Islamist militant group.

Journalist Sidi Haidara and CNN’s Margot Haddad, Elizabeth Joseph, Ross Levitt, Jamie Crawford, Laura Koran, Greg Botelho, Christian Purefoy, Nima Elbagir, Pierre Meilhan, Alanne Orjoux, Kevin Wang, Archith Seshadri, Chris Liakos, Zain Asher and Ashleigh Banfield contributed to this report.