At the time of the crash, the helicopter crew was engaged in “bucket work,” which involves scooping water out of a lake or river to dump on the fire.

Two helicopter pilots were killed in a crash while fighting the Dome Fire near Yosemite National Park. The FAA and NTSB are investigating the fatal incident.

Federal investigators are looking into what caused the helicopter to go down near Mariposa.

The two pilots killed in a helicopter crash while fighting the Dome Fire in Yosemite National Park have been identified by ...

Officials say two helicopter pilots were killed in a crash while battling a wildfire at Yosemite National Park in California.

A helicopter battling the Dome Fire in Yosemite National Park has crashed, killing two people. According to the Federal Aviation Administration, the Eurocopter AS332L1 crashed at 2:55 p.m. Sunday, ...

Two members of a helicopter crew battling the Dome Fire in Yosemite National Park were killed in a crash on Sunday, the U.S Forest Service said.

CALIFORNIA, USA — Two helicopter pilots were killed when their aircraft crashed Sunday afternoon while conducting water drops on a wildfire at Yosemite National Park, officials say.

Two people died when a helicopter crashed while conducting water-bucket drops to fight a wildfire in Yosemite National Park in California.

The crew members, under contract with the U.S. Forest Service, were in a helicopter that crashed on Sunday while fighting a ...

Two people died when a helicopter fighting the Dome Fire in Yosemite National Park crashed during water drops.

A firefighting helicopter crashed on the Dome Fire, killing two pilots as the Yosemite-area wildfire continued to expand.