All 11 people aboard a plane taking passengers on a skydiving trip were killed after the plane crashed and burned on Friday night north of Honolulu, authorities said.

The plane, a twin-engine Beechcraft BE65, crashed under unknown circumstances while taking off from Dillingham Airfield on Oahu’s North Shore around 6:30 p.m., the Federal Aviation Administration said. The plane was destroyed by the fire, according to the agency.

“In my 40 years as a firefighter here in Hawaii, this is the most tragic aircraft incident that we’ve had,” Manny Neves, fire chief for the Honolulu Fire Department, said at a news conference on Friday night. “We had some helicopters with the military, but this is a civilian plane that went down.”

He added: “There is nothing left of the plane.”

The authorities have identified the skydiving company but not released its name. The names of the victims were also not released.