Police say a diver has been killed by two great white sharks off the south Australian coast.

Police Insp. Glen Sickerdick told Australian Broadcasting Corp. radio the abalone diver was surfacing Thursday when he was attacked near Port Lincoln in South Australia state.

An ambulance service spokeswoman told Australian Associated Press the skipper of the dive boat saw the attack and returned alone to Port Lincoln where he was treated for shock.

Sickerdick says a search for the diver's remains will begin Friday.