Bomb disposal experts blew up what was believed to be a second world war shell on the beach yesterday.
Coastguards said the unidentified item was found at low tide on Friday, when spring tides meant areas of the beach normally covered by the sea were exposed.
It was destroyed in a controlled explosion by a bomb disposal team yesterday afternoon.
Shells are commonly found around Titchwell, which once housed a large firing range.
The rusting hulks of two tanks are also visible at low tide, near the bird reserve, along with the remains of an observation tower.
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