ELITE Royal Navy units have detonated a Nazi bomb at sea following the largest evacuation since WW2. The 500kg shell was found on Tuesday in the Keyham area of Plymouth by a dad building an extension. 21 The bomb was dragged behind a rib in Plymouth as it was taken out to sea to be detonated Credit: Matt Giley 21 It appears to be being transported in a buoy-type vessel Credit: Matt Giley 21 The bomb - seen here hanging from the digger arm - was loaded from the military truck into a buoy-type vessel 21 A military vehicle carrying...