The Prime Minister and the Labour leader have clashed in the House of Commons over the West Coast Main Line. The new contract to run services on the line was scrapped last month after the government admitted serious flaws in the franchise system. Investigations have been launched into what went wrong. The current operator Virgin has been asked to continue operating trains in the short term.

At Prime Minister's Questions, Ed Miliband asked whether any ministers had known about concerns among bidders 'as long ago as May 2011'.

David Cameron said that the Transport Secretary had already made a full statement on the issue to MPs, and had explained how commuters will continue to be served.

Watch the exchange between the Prime Minister and the Opposition leader here: