World War 2 bomb unexpectedly detonates at Bam/Farrans site

A Second World War bomb has exploded unexpectedly at the Great Yarmouth third river crossing construction site in Norfolk.
The 1m-long, 500lb bomb was discovered last Tuesday by a contractor working for BAM Farrans joint venture at the bascule bridge site.
The moment the bomb detonates at Third River Crossing site in Norfolk
It was discovered during dredging work in the River Yare at Bollard Quay close to the junction with Boundary Road.
After raising the alarm,  cordons were put in place w