Jerusalem CNN —  

A senior commander of Gaza Strip militant group Islamic Jihad was among ten people killed in Israeli air strikes on Tuesday, according to Palestinian Health Ministry officials.

And in Damascus, Syria says an Israeli air strike killed at least two people including the son of Islamic Jihad leader, Akram al-Ajouri.

The developments serve to escalate significantly tensions between Israel and Gaza militants. Baha Abu al-Ata was killed in an overnight strike on a house in Shajaiyah, in Gaza City. His wife Asma Abu Al-Ata was also killed, as well as four others belonging to Islamic Jihad’s armed wing the Quds Brigade.

Forty-five people were injured in airstrikes, some seriously, Palestinian Ministry of Health officials said.

Mourners carry the body of Baha Abu Al-Ata during his funeral in Gaza City on November 12.
SAID KHATIB/AFP via Getty Images
Mourners carry the body of Baha Abu Al-Ata during his funeral in Gaza City on November 12.

Abu al-Ata was responsible for rocket fire from Gaza in recent months, the Prime Minister’s Office said shortly after the strike, as well as planning numerous other attacks against Israel.

What is Islamic Jihad?

  • Islamic Jihad is the second largest militant group in Gaza after Hamas.
  • Israel holds the group responsible for many rocket attacks launched from Gaza.
  • The Palestinian group is supported by Iran, and has close relations with the Lebanese militant group Hezbollah.
  • Several Western countries, including the United States, consider Islamic Jihad a terror organization.
  • Its first secretary general, Fathi Shaqaqi, was assassinated in 1995.
  • Unlike Hamas, Islamic Jihad has never taken part in Palestinian Authority elections.
  • Al Quds Brigades is the name of the group's militarized wing.

“Abu al-Ata was promoting preparations to commit immediate terror attacks in various ways towards Israeli civilian and IDF troops during the recent few days,” an IDF statement said.

“Al-Ata trained terror squads for infiltration and sniper attacks, drone launching and rocket fire to different distances.”

Islamic Jihad vowed to avenge the killing, saying in a statement: “The response to this crime will have no limits … the occupation will be the one responsible for this aggression.”

Islamic Jihad leader, Khaled al-Batsh, said at a press conference Tuesday that Israeli Prime Minister, Benjamin Netanyahu, “will pay a high price.”

Lian (C) daughter of Baha Abu Al-Ata mourns during his funeral in Gaza City on November 12.
SAID KHATIB/AFP via Getty Images
Lian (C) daughter of Baha Abu Al-Ata mourns during his funeral in Gaza City on November 12.

Islamic Jihad is the second largest militant group in Gaza, after Hamas, which governs the coastal strip. Of the two main factions it is seen as having a closer relationship with Iran. Both are bitter opponents of Israel, though tensions exist between them over their commitment to a truce with Israel that has largely held since the 2014 war.

On recent occasions when the truce has broken down and rockets have been fired from Gaza, Islamic Jihad has generally been seen as responsible.

Smoke is seen Gaza City following an Israeli air strike on November 12.
MAHMUD HAMS/AFP via Getty Images
Smoke is seen Gaza City following an Israeli air strike on November 12.

Tuesday morning the IDF said Islamic Jihad was behind more than 100 rockets fired into Israel from Gaza, with dozens intercepted by Israel’s aerial defense system. Two people sustained light injuries when a rocket narrowly missed their car as they were driving in the eastern outskirts of Ashdod, according to Israeli emergency service United Hatzalah.

The IDF said dozens of rockets were intercepted by its aerial defense systems.

Israel ordered all schools and workplaces in Tel Aviv, as well as cities near Gaza to the country’s south, to close.

Israeli police inspect a hole in the highway in Ashdod on November 12.
JACK GUEZ/AFP via Getty Images
Israeli police inspect a hole in the highway in Ashdod on November 12.

In Damascus, the son of another Islamic Jihad leader, Akram al-Ajouri, was killed in overnight strikes, according to Syria’s state-run SANA news agency. Another person was killed and 10 others injured, including Ajouri’s daughter, according to SANA.

SANA blamed Israel for the attack, saying three missiles were launched at Damascus by aircraft. The IDF offered no comment when contacted by CNN.