The Ministry of Defence has carried out a controlled explosion on a suspected World War Two bomb near Chelmsford in Essex.
Police say the device was "inert" and would not have caused an explosion.
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Paul Dadge become the unwitting face of the 7/7 rescue effort after a picture of him helping a woman in the aftermath went around the world.
Speaking to ITV News' Mark Austin on the anniversary of the London bombings, ex-PM says nations around the world will need to respond.
London was in a celebratory mood on 7 July 2005, but everything changed when three suicide bombers attacked the capital's transport network.