More than 50,000 residents from the southern German city of Augsburg are being evacuated from their homes so that an operation to defuse a World War Two bomb can get under way on Sunday.

It is the country's biggest evacuation for an unexploded bomb since the end of the war.

The 1.8-tonne British explosive is thought to have come from a 1944 air raid, which destroyed the old town.

It was uncovered during construction work.