3 firefighters killed, 2 injured while tackling wildfires on the Colorado-Utah border

Three firefighters were killed and two others were injured while responding to fires on the Colorado-Utah border, according to the U.S. Wildland Fire Service.

The fatalities were tied to the Knowles and Gore fires. AP reported that the deaths were announced on Sunday, June 28, 2026, in a statement from the federal wildland firefighting service.

The incident is the latest sign of how dangerous the late-June fire season has become across the West, where hot, dry and windy conditions have made suppression work more difficult and increased the risk to crews on the ground.

What officials have confirmed

The research packet does not identify the firefighters who were killed or injured, or the agencies they were assigned to.

It also does not yet explain exactly what happened on the fire line. Officials have not publicly detailed the cause of the fatalities or the specific circumstances that led to the injuries.

What is confirmed is that the deaths occurred during an interagency response to the Knowles and Gore fires near the Colorado-Utah border.

The terrain in the area has been described as steep and difficult for heavy equipment and engines to reach, adding another layer of difficulty for crews working the fires.

A fast-moving fire emergency

The border fatalities came as Utah faced a larger wildfire emergency. AP reported that Utah Gov. Spencer Cox declared an emergency because of the fire conditions.

Colorado Gov. Jared Polis also declared an emergency and authorized National Guard support for the fires, according to AP.

In parts of Beaver County, Rocky Mountain Power shut off power lines because of fire risk, reflecting the seriousness of the threat to communities and infrastructure.

The broader Western fire outbreak has been driven by red flag warnings, low humidity, heat and gusty winds. Those conditions have helped create a volatile setting for firefighters working multiple incidents at once.

AP also reported that nearly 3 million acres had burned nationwide this year, a pace above the 10-year average.

Cottonwood Fire adds to pressure

The fatal border incident unfolded as Utah’s Cottonwood Fire continued to spread. AP reported the blaze had grown to more than 144 square miles, making it the largest active wildfire in the United States at the time of reporting.

That fire had already damaged part of a ski resort and summer cabins, underscoring how quickly the broader wildfire emergency was affecting both public land and private property.

The combination of multiple large fires, steep terrain and dangerous weather has stretched crews across the region. The Colorado-Utah border fires are part of that wider pressure point.

What happens next

Officials have not yet released full details on the Knowles and Gore fire scene, and the confirmed toll could still change as assessments continue.

The main unanswered questions are which agencies the three firefighters were working for, what caused the fatal incident, and whether additional evacuations, closures or damage estimates will be announced.

Authorities are also expected to provide updated information on containment and acreage for the border fires as incident reports are refined.

For now, the confirmed facts are limited but severe: three firefighters died and two were injured while responding to fires on the Colorado-Utah border, as the West endured another dangerous stretch of wildfire weather.