CCTV released after Tube worker 'pushed on tracks'

Police have released a CCTV image of a man they want to speak to after a London Underground worker was allegedly pushed on to the tracks.The customer service assistant did not suffer any injuries after falling from a District Line platform at Victoria.Inspector Paula Jones, from the British Transport Police, said: "This was a very serious incident and we have a number of urgent inquiries under way to find the person responsible.