Army specialist will continue working throughout the morning to defuse a Second World War bomb that was discovered in Great Yarmouth. 

The 250kg bomb was dredged up on the River Yare on Tuesday and has led to a number of road closures and people evacuated from their homes. 

On Thursday a bomb disposal robot was called in by the army to cut into the device as part of the first stage of the defusing project. 

A 400-tonne sand wall has been put around the bomb in an effort to absorb the explosion. 

After the device is made safe it could then be taken to army land to be fully defused. It could also be taken out to the North Sea to be blown up.

Head of Great Yarmouth Police superintendent Nathan Clark said work is likely to continue until at least 10am today (February 10). 

The army was supposed to start the defusing process on Thursday but had to stop after two nearby gas mains were discovered. 

A 400 metre cordon is in place and people are being asked to avoid the area.