An « unexploded device » has been found in a beach car park.
Norfolk Police was called to Horsey Gap, between Great Yarmouth and Cromer, at 09:00 BST after the discovery.
Visitors were being asked to avoid the area, the car park remains closed and a police cordon was put in place while the device was « safely contained ».
An Army bomb disposal team had been contacted and would be attending to « assess the item », police said.