David Cameron is new prime minister.

(From Guardian Unlimited)

David Cameron has entered 10 Downing Street as prime minister, returning the Conservative party to power after 13 years.

Cameron accepted the Queen's invitation to form a new government shortly before 8.30pm and minutes later spoke to the country outside Downing Street alongside his wife, Samantha, and announced he will establish a "proper and full" coalition with the Liberal Democrats - the first in British politics since 1945.

It follows four days of intense negotiations between all three main political parties sparked by last week's election which delivered a hung parliament.

Cameron drove into Downing Street to a mixture of cheers and boos before making a sombre speech in front of assembled senior Conservative officials.

He began by paying tribute to the Labour government for handing on a country that is "more open at home and more compassionate abroad," and paid tribute to Gordon Brown's "long record of dedicated service".

"This …