About 100 people have been moved from properties in east London after a large World War II bomb was uncovered.
The device was discovered by workmen working on a building site off Palmers Road in Bethnal Green at about 1745 BST on Monday.
A 200-metre cordon was set up on Roman Road and a rest centre was established for evacuees at Bethnal Green Technology College in Gosset Street.
Metropolitan Police officers and a specialist army unit were at the site.
A spokesperson from Tower Hamlets council said: "About 100 people have been evacuated from properties in the immediate area of where the bomb was discovered."
Nearby roads were closed off to traffic, and the cordon was expected to stay in place overnight.
Anyone affected by the incident was advised to contact Tower Hamlets council on the emergency telephone number: 020 7364 7000.