The UK economy remains "fundamentally strong" despite concerns about the impact of Brexit, Prime Minister Theresa May has said.

In an interview with BBC political editor Laura Kuenssberg at the Conservative conference in Birmingham, Mrs May said Brexit talks would "not be plain sailing" but the UK was the fifth largest economy in the world.

She also stood by her decision not to hold an early general election, saying the Conservatives were elected in 2015 and her government was "continuing the work that (predecessor) David Cameron started".

She also said another general election would lead to "instability".