The MP who first raised the claims that a paedophile ring had been operating in Westminster during the 1980s has said many new allegations have now come to light.

Labour MP Simon Danczuk says his office has received around a dozen new pieces of information.

Those allegations, he told ITV News, have been throwing up the same name time and again.It is of a former MP from the 1980s.

Earlier this week, Mr Danczuk, told MPs on the Home Affairs Committee that a dossier had been handed to the Home Secretary in 1983 by the late Conservative member Geoffrey Dickens.

The Home Secretary at the time was Leon Brittan, now Lord Brittan. The dossier can no longer be found.

A search for it last year did however find a letter from Lord Brittan to Mr Dickens in 1984 which said the claims had been acted on and were being passed to the police.

David Cameron has now asked the most senior civil servant at the Home Office, the Permanent Secretary Mark Sedwill, to get some answers - both to the allegations and to what happened to the dossier.

Read: Cameron orders investigation into missing 1980s abuse dossier