Artificial intelligence (AI) could become "a weapon of mass destruction of jobs" if not properly controlled, Sir Sadiq Khan is set to say.

During his annual speech at Mansion House later, the mayor is due to outline his concerns about the impact of AI on the London's labour market.

He will say urgent action is needed to "seize the potential of AI and use it as a superpower for positive transformation and creation" and to prevent "a new era of mass unemployment".

London is "at the sharpest edge of change" because of the "colossal" impact on jobs in key sectors including finance, professional services and the creative industries, he will add.

The mayor's speech says AI could transform public services and tackle complex challenges like cancer care and the climate crisis, but if used recklessly, it could "usher in a new era of mass unemployment, accelerated inequality and an unprecedented concentration of wealth and power".