Festival-goers 'collapsed' and let out screams after long queues saw impatient crowds push through security barriers at a London festival. A video and photos show barriers being lifted in the air as crowds of t-shirt clad revellers rush past barriers to get in to We Are FSTVL, in Upminster, yesterday. Witnesses said a lack of wristbands triggered the rush of people running past staff to get into the event, and one man later posted photos of bruises to his leg caused by the crush. Videos and photos show barriers being lifted in the air as crowds of t-shirt clad revellers rush past barriers to get in to We Are FSTVL, in Upminster Witnesses said a lack of wristbands triggered the rush of people running past staff to get into the event, and one man later posted photos of bruises to his leg caused by the crush Hundreds of people who had waited in a three-hour queue are seen in a video pushing through barriers as staff stand by. Barriers are pushed on the grass amid hoards of people, who then walk across them before carrying on into the attraction, and one man can be hear saying, 'what a joke!' Lewis Mitchell, 26, told The Sun Online he was injured after being 'stomped on' by a 'stampede'. He said: 'People had got fed up of waiting and forced the fences open, crushing people underneath. 'I tried to help a girl on the floor and ended up being pushed in to a wooden table then stomped on all over leading to these injuries. 'All I could see was a crowd of people treading on my legs,' he added. Hundreds of people who had waited in a three-hour queue are seen in a video pushing through barriers as staff stand by. The two-day festival's line up yesterday included Chase and Status, Bugzy Malone, and CamelPhat. One woman told the BBC that a woman was hit by a barrier which had been thrown into the crowds. 'A barrier got thrown into the crowds, the woman next to me got hit by it and it sliced a massive chunk out of her leg,' she said. 'She's passed out on the floor, security ran over to her and people were just charging through. 'They took out the barriers, pushed through security, punching security, just taking everyone out in their way,' she added. Another reveller who had travelled from Birmingham, Renardo Henry, 21, said some people passed out in the heat, but staff were just throwing water bottles into the crowds. Barriers are pushed on the grass amid hoards of people, who then walk across them before carrying on into the attraction, and one man can be hear saying, 'what a joke!' He added that he saw his friends 'getting crushed' and some people were 'crawling and crying' after being trampled on. Last night, a We Are FSTVL spokesman said in a statement on Facebook: 'Our sincere apologies for anyone that experienced delays coming into the show today. 'A reminder to weekend ticket holders you don’t need to re-scan your wristband on Sunday but you will be subject to a search. 'To make things quicker for everyone tomorrow we are also adding additional staff, infrastructure and have worked with the technology providers to speed up the ticket checking process.' In this video, crowds are seen rushing past barriers, while one man takes a running jump over them All rights reserved for this news site dailymail and under his responsibility