AN UNEXPLODED World War Two bomb halted work on the Hampshire headquarters for Sir Ben Ainslie's America's Cup bid today.
Sir Ben said he had chosen Portsmouth due to its “maritime heritage” and the footfall generated by the ferry port.
The shell was found at around 3.30pm, sparking police to establish a cordon at Portsmouth Cathedral to prevent people from accessing Sallyport and The Point.
The Royal Navy bomb squad were drafted in and have safely removed the shell.
The cordon was lifted just before 5.30pm.