People watch a procession of police vehicles escort the hearse carrying the body of a deputy killed in a domestic disturbance where multiple deputies and civilians were shot in Highlands Ranch, Colorado, on December 31, 2017.
The police was called after a "disturbance" at the apartment, where around 100 rounds were fired by a gunman, one of which killed a 29-year-old deputy Zackari Parrish.
"All of them were shot very, very quickly, and they all went down nearly within seconds of each other", said Douglas County Sheriff Tony Spurlock at a press conference. Four other deputies and two civilians were also shot, officials said.
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The injured officers, all in stable condition, are Deputy Mike Doyle, 28, Deputy Taylor Davis, 30 and Deputy Jeffrey Pelle, from Douglas County. At one point he said there were well over 100 rounds fired.
A procession of police vehicles later escorted the body of the deputy who was killed from Littleton Adventist Hospital.
The gunman was shot and is believed to be dead, the sheriff's office said.
Parrish, the officer killed in the New Year's Eve attack, had been a deputy for about three years, and previously served with the Castle Rock Police Department.
Police also say the two injured civilians do not have life threatening injuries. Residents in the vicinity were asked to shelter in place, and avoid windows and exterior walls. They have now established an emergency shelter for those displaced by the police search. All of the officers were shot very quickly and went down within seconds of each other, Spurlock continued.
Officers were given a key to the apartment and permission to enter, but once they walked in, officers said they were immediately under fire.
As of 10 minutes ago, the Douglas County Police Department tweeted citizens should still avoid the area.
President Trump sent condolences on Twitter: "My deepest condolences to the victims of the bad shooting in Douglas County @dcsheriff, and their families".
The incident occurred about 5:15 a.m.at Copper Canyon Apartments, a manicured complex in Highland Ranch, about 20 miles south of Denver.
The suspect's identity has yet to have been made public, that said police said there had been previous encounters with the suspect who used a semi-automatic rifle during the shooting.
Before the start of the Broncos-Chiefs game on Sunday Dec. 31 in Denver, 2017, the Denver Broncos posted a message of condolence after Douglas County Deputy Zack Parrish was killed in the line of duty Sunday morning.