Authorities responded to a helicopter crash Wednesday afternoon in Madison County that killed all people on board, officials said.

Authorities were dispatched to Burwell Road and Highway 53 at 3:01 Wednesday on a report of a crashed helicopter, said Don Webster with Huntsville Emergency Medical Services, Inc.

The helicopter was burnt.

Webster said there were no survivors, but officials did not immediately know how many people were on board the aircraft.

It was also unclear whether the helicopter was a military or civilian aircraft.

This is a breaking news story and will be updated.