A bulk carrier abandoned after it grounded off the coast of South Africa amid severe weather has broken up, authorities said.

The 13,800-dwt Ultra Galaxy (built 2008) has broken into four parts following a renewed bout of bad weather.

The South African Maritime Safety Authority said the vessel had been battered by huge swell waves of up to eight metres every 15 seconds that first saw the accommodation block sheer off before further cracks appeared in the hull.