Quote:David Cameron gives his first speech as Prime Minister outside 10 Downing Street

Conservative leader David Cameron has become the new prime minister after the resignation of Gordon Brown.

Lib Dem leader Nick Clegg will be his deputy prime minister in the UK's first coalition government in 70 years.

Mr Cameron, who at 43 is the youngest PM in nearly 200 years, vowed to set aside party differences and govern "in the national interest".

His party won the most seats in the general election last week, but not an overall Commons majority.

Lib Dem MPs and peers are still meeting to give their formal backing to the power-sharing deal, however Downing Street said the Queen had approved Mr Clegg's appointment.