FIVE police officers were shot and one died after they responded to a domestic violence incident in the United States. Two civilians were also wounded in the brutal standoff.

A SHERIFF’S deputy was killed and six other people, including four deputies, were wounded in what police called a “domestic disturbance” in a residential suburb near Denver, Colorado.

The lone suspect was “shot and believed to be dead” after the standoff at the Copper Canyon apartment complex in Highlands Ranch, 20 kilometres south of Denver, the Douglas County sheriff’s office tweeted.

“Deputies responded to a domestic disturbance resulting in shots fired. Five deputies shot by suspect. One deputy confirmed deceased. Two civilians also shot by suspect. Suspect shot & believed to be dead & no longer a threat. #CopperCanyonOIS.”

Details of the incident were not immediately clear.

The wounded were taken to two area hospitals, at least three of them with non-critical injuries, the Denver Post reported.

Deputies had responded to an early-morning call of a disturbance when shots were fired from the building. Police quickly dispatched a heavily armed SWAT team as well as a bomb-squad truck, though there was no immediate word of any explosives being found.

Police from five jurisdictions, including Colorado state police, were placed on alert.

As the incident unfurled, the sheriff’s office advised local residents to take cover in place and stay away from windows.

The toll among deputies appeared to be one of the highest in a police-involved shooting since five officers in Dallas, Texas were shot to death and several others injured in July 2016 by a man angered by police shootings of black men.

The area near the shooting has been scarred by dramatic mass shootings in recent years, including the Columbine school shooting in 1999, which left 15 people dead, and the 2012 shooting at a movie theatre in Aurora that claimed 12 lives. Both are within a half-hour’s drive of Highlands Park.