Newspaper editors have been warned by David Cameron that they must act "urgently" to set up an independent press regulator.

The Prime Minister took part in a summit of senior industry figures at Number 10 to hear proposals for a new regime not backed by law.

Culture Secretary Maria Miller has made clear that the option of legislation called for by the Leveson Report remains an option if progress cannot be made.

"I've just spoken to newspaper editors in No 10 - telling them they need to set up an independent regulator urgently," Mr Cameron wrote on Twitter.