Three men are dead after a helicopter crashed west of Terrace, B.C. Friday morning in an area called Sleeping Beauty Mountain.

The Joint Rescue and Coordination Centre in Victoria has confirmed there were no survivors in the crash, which occurred just after 9 a.m. during a training flight.

The victims' identities have not been released.

Search crews were dispatched to the area after the helicopter sent off an automated crash beacon, but had trouble accessing the site due to difficult terrain. Emergency crews were pulled away from the scene because of avalanche dangers.

Officials say weather conditions were poor at the time of the crash.

The chopper is owned by Bailey Helicopters of Fort St. John. The company has yet to issue a statement.