Two teenagers were killed and 10 other people were injured in a shooting at a party in Amarillo, Texas, and police are asking for the public’s help to identify the suspects.

Two people opened fire at an apartment complex around 2 a.m. local time Saturday morning, city authorities said. Officials are asking residents to check doorbell and surveillance cameras for any activity around that time.

Officials released footage they had recieved, which shows two suspects opening fire, followed by yelling and screaming with more gunshots ringing out. Details on a motive were not released.

“When I looked outside and came outside it was complete chaos,” neighbor Phillip Thrasher told KTVT-TV. “I mean there was kids running everywhere, just screaming and running. They didn’t even know where they were running to, you know. And then moms and dads showed up and came to their kids’ rescues. The ones that could, the ones that couldn’t were so upset. I mean there was nothing you could do.”

Amarillo police said two teens, ages 16 and 17, were killed and 10 others were injured. The conditions of the wounded were not released.

“The investigation into this morning’s events have identified that the suspects have an affiliation with the targeted location and were known to one of the occupants at the party,” Police Chief Thomas Hover said in a statement on Saturday.

Police said the people involved had been at a party at a different location and were asked to leave, then went to the complex where the shooting occurred.

Phone messages were left Sunday for police officials and management of the apartment complex, located close to Interstate 40 about 6 miles (10 kilometers) west of downtown Amarillo.

Hover said police had increased patrol staffing after separate shootings killed six people in Amarillo on March 22.