Two helicopter crew members were killed Sunday when their aircraft crashed while battling a wildfire in Yosemite National Park.

The chopper went down shortly before 3 p.m. with two people on board in Mariposa County, according to the FAA.

Aerospace company Precision confirmed both crew members died, calling the loss “devastating.”

The crash occurred as crews battled the Dome Fire, which had scorched more than 3,000 acres since igniting Sept. 15.

The helicopter was a Eurocopter AS32 and crashed at about 2:55 p.m. on Sept. 20, while firefighting crews were operating in the area.

“We are devastated by this loss and are struggling to find the words,” Precision said in a statement. “We ask for privacy and compassion for their families and our team as we grieve this tremendous loss.”

CAL FIRE said the fire has reached areas previously burned by other wildfires, including the 2017 Empire Fire, where less vegetation has contributed to reduced fire behavior.

Officials said the fire was producing creeping and smoldering conditions in those areas, although winds were still carrying embers ahead of the main fire and causing spot fires to the north.

The Dome Fire began Sept. 15 in Mariposa County and was reported at 15% containment by Monday.

The National Transportation Safety Board is expected to lead the investigation into the crash, with the FAA also participating.

Sources: NY Post