By Craig Mackenzie PUBLISHED: 02:46 EST, 15 July 2012 | UPDATED: 18:19 EST, 15 July 2012 Tragic: Powerboat racer William Nocker was travelling at speeds of 120mph A British powerboat racer has been killed after his boat flipped and 'barrel rolled' at speeds of 120mph. William Nocker was competing in the first race of the inaugural Gabon Grand Prix in west Africa when the accident happened. The 47-year-old was rushed to a military hospital in Gabon's capital city Libreville but doctors were unable to resuscitate him. His co-driver, Norwegian Kurt Olsen, was also badly hurt and remains in a critical condition in intensive care.
@highlight
William Nocker had just returned to sport after five-year ban when tragedy struck during race in west Africa
Wreckage: The damaged powerboat after the high speed crash in @placeholder which killed William Nocker