A small plane crashed at London Southend Airport in Sussex, England, on Sunday, killing all four people on board, according to local officials.

London Southend Airport in Essex said that it has closed operations until further notice after the police said a small plane crashed at the airport on England's south-east coast on Sunday.

A witness who was at the airport with his family said he saw a “big fireball” after the plane “crashed head first into the ground.”