ROYAL Navy experts were today carrying out a further search off Felixstowe after a £250,000 high-tech mini spy sub indicated several possible sites for the missing 1,000lb bomb.

ROYAL Navy experts were today carrying out a further search off Felixstowe after a £250,000 high-tech mini spy sub indicated several possible sites for the missing 1,000lb bomb.

After analysing information gathered by the unmanned underwater vehicle (UUV) Remus, officers said there were “variety of contacts we would like to explore” but stressed it did not mean they had necessarily located the weapon.

Weather permitting, they were due to set off again at 8am today to dive to those positions where Remus photographed objects.

Warrant officer Robin Rickard, who is overseeing the diving team, said once Remus had found the German Second World War bomb the team would prepare to dispose of it.

“Our next task will be to go back to the exact GPS position which the UUV gives us, gets hands on and mark the bomb so we know where it is,” he said.

“We have calculated the tidal streams and drift and other environmental conditions, and believe the bomb is in the area we are searching. If we find it first time, fantastic - if not, we try again.

“It has been frustrating and time-consuming, and sometimes that is the way these things happen, but we have doubled our efforts and are confident of success.”

Navy officials say the bomb has been “temporarily misplaced through mechanical and technical mishaps”.

The bomb is mostly TNT dynamite but mixed with about 30pc aluminium powder to make it particularly fierce.

When it goes off it should shoot a plume of water 150 to 200 ft into the air and noise should be heard across the town.