Britain's Theresa May, left, is applauded by Conservative Party members of parliament outside the Houses of Parliament in London.

Theresa May who has emerged as the new leader of the Conservative party, is expected to officially take over from David Cameron on Wednesday.

Ms May was confirmed as leader by the party’s influential 1922 committee and its board after her last rival dropped out of the Tory leadership contest.

Graham Brady, the Tory MP who chairs the committee, told reporters: “I can confirm that Mrs May has been elected leader of the Conservative Party with immediate effect.”

In a short statement in Westminster flanked by her party’s MPs Ms May paid tribute to her rival Andrea Leadsom “for the dignity she has shown today” and David Cameron “for the leadership he has shown our party and country”.

She said he would provide “strong proven leadership to steer us through what will be uncertain political times” and that “Brexit means Brexit and we’re going to make a success of it“.

We need a strong new positive vision for the future of our country, a vision for a country that works not for the privileged few, but that works for every one of us,” she said.

We’re going to give people more control of their lives, that’s how together, we’re going to build a better Britain“, Ms May added.