Election 2015: Cameron agrees to seven leader TV debate

David Cameron says he has accepted an offer to take part in one seven-way TV debate at the beginning of April.

The prime minister previously said he would not participate in a debate after the start of the campaign on 30 March.

But he said the broadcasters had come back with a "formal offer" for a new format of TV election programmes, including one multi-party debate, which he said had signed up to.

James Landale reports.