A sign informs about the planned bomb disposal (Picture: PA).
Thousands of residents in the German city of Frankfurt have been evacuated from their homes while bomb disposal experts defuse a device from the Second World War.
The 500-kilogram American air bomb was discovered during construction work close to the European Central Bank headquarters.
It is to be defused by a team from the Explosive Ordnance Clearance Service.
More than 16,000 people have had to leave their homes.
An evacuation zone has been created around the area, which included the European Central Bank and much of the city's east end on both sides of the Main River.
Frankfurt Airport tweeted that, due to the bomb disposal, 'flight routes for approaching and departing aircraft would be altered'.
Frankfurt Zoo, which lies slightly north of the zone, is due to remain closed but the animals are not expected to be moved.
Work to defuse the bomb will be finished by 6 pm (local time).
In 2017, construction workers found a 4,000lb British bomb in the city, which caused the evacuation of more than 60,000 residents.