A World War Two bomb found in Great Yarmouth has detonated while work was being done to defuse it, causing a huge blast that was heard for miles.
Army specialists were attempting to disarm it when there was an unplanned detonation at about 17:00 GMT.
People on social media said they heard a loud bang and felt buildings shake 15 miles (24km) away.
There have been no reports of injuries among the Army, emergency services or the public, Norfolk Police said.
Cordons were put in place when the bomb was first discovered close to two gas pipes on Tuesday, and work began to make it safe.
The cordons, at 200m (656ft) and 400m (1,312ft) from the bomb, were lifted on Friday evening.
Most roads have been reopened and residents have been allowed to return to their homes.
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