Beach walkers tomorrow (Tuesday) morning have been warned to be on the lookout for more of the mystery flares which have been detonated by bomb disposal experts in north Norfolk today.

A spokesman for Yarmouth Coastguard said the overnight tides could wash up more of the phosphorous flares, three of which were found at Sheringham, and one at Trimingham.

A bomb squad, from 5131 squadron RAF Wittering, carried out three separate controlled explosions at Sheringham and then moved south of Cromer, to Trimingham, to make the fourth flare safe.

They were all discovered earlier today. One was washed up on the slipway used by Sheringham Lifeboat, forcing the rescue vessel off service until the flare had been removed and safely destroyed mid afternoon. Cover for the area was provided by the lifeboats at Cromer and Wells.

Part of Sheringham beach was cordoned off while police and coastguards kept the public away and checked for further objects.

An RAF spokesman said experts were unsure where the flares had come from but it was suggested that they could have fallen from a foreign aircraft, possibly American or French.

The flares are described as being grey or pale blue, about one to two feet long and feature markings advising the finder to contact police.

Anyone spotting such an object is advised not to touch or approach it but to call the coastguard or police on 101.

? See tomorrow's EDP for more pictures of the drama.