"The NSRI and emergency officials are currently attending to him," said Craig Lambinon of the National Sea Rescue Institute.
He added that officials have asked the public to steer clear of the scene, and have urged people to stay out of the sea in the entire False Bay area.
Lambinon said the man was apparently fairly far out to sea when he was attacked. He could not yet say what type of shark attacked the man.
Shark attack at Fish Hoek beach: News24: South Africa: News (external - login to view)
Video just after the victim was brought ashore and then a shark lurking about the next day:
Shark Attack - YouTube
The Sharks Back - YouTube
Maybe the same fish a year ago:
Great White - Fish Hoek Beachm4v - YouTube
Victim (obviously lost his lower right leg):