An intentional explosion on a London film set sparked a huge blaze which destroyed vehicles.<br /><br />Onlookers said the fire started in a red lorry with the words "BBC World News" written on the side.<br /><br />But reports from the BBC say there was no involvement from the broadcaster, and it is understood the van was a prop in a TV show being filmed on London's docks.<br /><br />The London Fire Brigade (LFB) said is had sent 25 firefighters and four fire engines to the scene, near Dock Road n Silvertown, at 7.51pm last night (31).<br /><br />Videos show smoke coming from a vehicle which then explodes a number of times.<br /><br />An onlooker, 42, who works in set design, said filming often happens in the area.<br /><br />He said: "They were doing filming here. We saw them.<br /><br />"It exploded about five times."
