A man's arm has almost been severed in a shark attack off Western Australia's coast.
The man – believed to be in his 30s – was spearfishing offshore from Port Headland when he was attacked just after catching a fish this morning, according to the Department of Primary Industries and Regional Development.
He was brought to shore by boat and treated by paramedics before being rushed to Hedland Health Campus as a priority 1 patient.
READ MORE: 'Stay indoors': Millions warned of severe storms, possible tornado
The Royal Flying Doctor Service said he has suffered serious injuries and that his left arm was almost severed at the shoulder.
The helicopter service will fly him to Royal Perth Hospital today.
READ MORE: Man alive when put in body bag, doctor claims
9News understands the man was bitten up to three times.
The Department of Primary Industries and Regional Development are investigating.
It is not known what type of shark was involved.
READ MORE: New details of killer in Thailand childcare centre massacre