(CNN) -- One of eight people killed in a bar shooting near Medellin, Colombia, early Friday has dual U.S.-Colombian citizenship, Colombian officials said.
A press statement on the president's website identified the victim as Jackson Hill. No other information on him was provided.
A State Department spokesman told CNN that U.S. officials in Colombia are aware of the case and are in touch with the victim's family. He referred all further questions to Colombian authorities.
Nine people were wounded in the predawn attack, police said. Five were still being treated Friday afternoon.
According to the National Police director, Gen. Oscar Naranjo Trujillo, two men fired semiautomatic weapons at patrons as they left the bar in the Medellin suburb of Envigado.
Hill and three others died immediately, Naranjo said in a statement on the police website. Three others died at medical centers, he said. No information was given on the eighth fatality.
The shooting was the result of fighting between drug gangs headed by Maximiliano Bonilla, known as Valenciano, and Angel de Jesus Pacheco, called Sebastian, Naranjo said.
Colombian President Alvaro Uribe in a separate statement said he "deplores" the attack, which he called a "massacre."
"The criminal phenomena of narcotrafficking continues with a great capacity to inflict damage," Uribe said.
The president said he would convene a National Security Council meeting in Medellin later Friday. Naranjo arrived in the city Friday morning.
Naranjo said authorities are offering a reward of 200 million pesos (about $105,000) for information leading to the arrest of the hitmen.
CNN's Charley Keyes contributed to this report.