HAMPSHIRE ocean racer Alex Thomson has been forced to retire from a gruelling 5,000-mile transatlantic yacht race after his boat hit a submerged object.

Gosport-based Thomson announced shortly after 1pm he and co-skipper Ross Daniel were retiring from the Transat Jacques Vabre after taking on water from damage to yacht Hugo Boss.

It is a huge blow for Thomson, who was forced to pull out of the Vendée Globe in November just days into the race after a similar incident.

Hugo Boss was in sixth place when the boat hit an unknown object in the north Atlantic Ocean.