UPDATE: Sheriff’s deputy killed, others injured, responding to domestic disturbance in Colorado

Five sheriff's deputies in Colorado were shot, one of them fatally, while responding to a call about a domestic disturbance on Sunday morning.

The Douglas County Sheriff's Office said the deputies responded to a call from an apartment complex in Highlands Ranch, a few miles south of Denver, shortly after 5 a.m. Mountain time. The gunman opened fire, wounding two civilians. The gunman, whom authorities have not named, was later shot by deputies and is 'believed to be dead,” the sheriff's office said.

Authorities also have not named the deceased or injured officers, or the civilians. Deputy Jason Blanchard, spokesman for the sheriff's office, said no other information will be released until a news conference later Sunday.

Steven Silknitter, 50, said he was on his way home from work when his son called and told him there's a shooter at his apartment complex. He rushed home, but couldn't get inside the complex because police had blocked the entrance. As he was sitting outside, calling his fiance, who was sleeping inside their apartment, shots rang out.

'After she woke up, we heard about more than a dozen gunshots, a clear exchange of volley of gunshots,” Silknitter, who works as an overnight truck driver while going to school part-time, told the Washington Post.

Later, he said, he saw officers carrying a person whom he could only guess was the deceased deputy.

'Not in Highland Ranch, Colorado, not in our apartment,” Silknitter said in disbelief. 'Lived here for three years, quiet, nothing out of the norm. People go to work and [have] families, and then to wake up to a barrage of gunfire just a couple of buildings away from us.”

Silknitter said he doesn't know anything about the suspect.

One of the deputies injured is the son of Boulder County Sheriff Joe Pelle, The Denver Post reported, citing the sheriff's Facebook page. Boulder is more than 90 miles away from Douglas County.

A reporter for ABC affiliate Denver7 News tweeted early Sunday morning that the television station's crew heard gunshots just as they arrived at the scene.

A hospital where three people were taken said they had non-critical injuries, the Associated Press reported. Another hospital told the AP that four people were taken there but did not offer details.

A motorcade escorted the body of the fallen officer from a hospital on Sunday.

The shooting prompted a tweet from President Donald Trump, who offered his condolences from his Mar-a-Lago resort in Palm Beach, Florida.

He tweeted 'My deepest condolences to the victims of the terrible shooting in Douglas County @DCSheriff, and their families. We love our police and law enforcement - God Bless them all! #LESM”