A former army officer has spoken to Paul Ross about the World War Two bomb which has caused travel chaos in Birmingham.
Police have now safely detonated the explosive, two days after it was unearthed near the A38 in Aston.
The device, which weighed 250 kilograms, was surrounded by masses of sandbags in order to cushion the detonation.
Major Chris Hunter called this weight a "phenomenal" amount.
In an interview with Paul Ross, he said the impacts of the device would have been "catastrophic" if it had exploded in open air.