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Firefighter Stavros Marangos remembers being called to the scene at Tavistock Square after a bus was blown up by a suicide bomber.

"It was an eerie silence on a busy central London street, it was a scene of carnage, like something out of a war film".

"Hopefully I'll never have to see anything like that again".

52 people were killed and hundreds of others were injured when four suicide bombers attacked three London Underground trains and a London bus.

This clip is from Breakfast 7 July 2015