Mrs May, swearing in on Wednesday as next Prime Minister

Updated: 00:00 GMT, Jan 1, 1970 | Published: 05:35 GMT, Jul 12, 2016 |

Mr Cameron will tender his resignation to the Queen on Wednesday, leaving Mrs May, home secretary since 2010, to appoint her own ministerial team.

Britain’s next prime minister, Theresa May, called on Monday (July 11) for the country to unite under her leadership, promising to make a success of negotiating the country’s divorce from the European Union.

After receiving official confirmation she had won a leadership contest of the ruling Conservative Party following the exit of the only other candidate, May told reporters: “Brexit means Brexit and we are going to make a success of it … we need to unite our country.”

May is due to be installed as prime minister in succession to David Cameron on Wednesday (July 13).

Flanked by dozens of Conservative MPs, Mrs May praised Mr Cameron for his stewardship of the party and the country and paid tribute to Mrs Leadsom for her “dignity” in withdrawing her leadership bid.

Mr Cameron praised Mrs May as “strong” and “competent” and said she was “more than able to provide the leadership” the UK needs in the coming years.

“She will have my full support,” he added.

In her speech, May thanked her last remaining opponent, Andrea Leadsom, who dropped out of the leadership contest earlier in the day. She promised to work towards a vision of the UK that works “not for the privileged few, but that works for every one of us”.

“I would like to pay tribute to the other candidates during the election campaign, and I would like to pay tribute to Andrea Leadsom for the dignity that she has shown today. I would also like to pay tribute to David Cameron for the leadership that he has shown our party and our country,” May said.

“We need to unite our country and third we need a strong, new, positive vision for the future of our country,” she added. “A vision of our country that works not for the privileged few, but that works for every one of us, because we’re going to give people more control over their lives, and that’s how together we will build a better Britain.”