Essex Police say they are combing through video to catch those behind Thursday's violence in Epping, which left eight officers injured. A protest outside a hotel believed to be housing asylum seekers quickly spiralled into violent clashes between crowds and police - with people throwing objects at police officers and hitting vehicles. Sky's National Correspondent Tom Parmenter reports. #epping #police #immigration #skynews SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/