A suspected unexploded Second World War bomb found in the River Thames near the Houses of Parliament is being towed away for safe disposal, police said.
The Waterloo and Westminster bridges were forced to shut for several hours, Westminster underground station closed and river traffic halted after the device was dredged up near the Victoria Embankment.
A Port of London Authority spokesman told the BBC that the suspected bomb measured around 2 ft by 1 ft (60cm x 30cm).
A police cordon remained in place into the early hours of Friday morning as the device was removed.
Large crowds of tourists and passers-by gathered at the police tape with some calmly taking photographs of the odd sight.
Westminster Police tweeted that the ordnance was “being towed for safe disposal / removal elsewhere” as they reopened the riverfront at around 3am.
Scotland Yard said specialist officers had assessed the device and alerted the Royal Navy after they were called to the River Thames at 5.15pm on Thursday.