Malaysia navy helicopters collide in mid-air, killing all 10 onboard

Videos on social media show helicopters flying in formation when one clipped another and both crashed

Two Malaysian navy helicopters have collided in mid-air during a rehearsal for a parade, killing all 10 crew members on board, the navy has said.

The incident occurred at the Lumut naval base in the western state of Perak at 9.32am on Tuesday (0132 GMT), the navy said in a statement.