DENVER (AP) — A man fired more than 100 rounds at sheriff’s deputies in Colorado early Sunday, killing one and injuring four others, before being fatally shot himself in what authorities called an ambush. Two civilians were also injured.

Douglas County Sheriff Tony Spurlock said deputies came under fire almost immediately after entering a suburban Denver apartment and trying to talk with the suspect, who was holed up inside a bedroom.

“I do know that all of them were shot very, very quickly. They all went down almost within seconds of each other, so it was more of an ambush-type of attack on our officers,” Spurlock said. “He knew we were coming and we obviously let him know that we were there.” KUSA – An early morning domestic disturbance at a Highlands Ranch apartment complex led to the shooting of multiple deputies on Sunday morning, according to the Douglas County Sheriff’s Office.