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Tory leadership contenders Theresa May and Andrea Leadsom came under pressure from Sadiq Khan today to meet five key demands to help protect London’s jobs and prosperity post-Brexit.

The Mayor has written to the two Prime Ministerial hopefuls to call for urgent talks on commitments he believes are vital to help the capital.

In his letter, Mr Khan said: “It is not only in London’s interests but the national interest for discussions to start immediately and for these commitments to be made now so that we move quickly to protect jobs and prosperity in London and across the country.

“London’s economy — and therefore jobs and growth across the UK — face serious risks through the uncertainty ahead. We simply cannot wait until September 9.”

Among his demands is a call on the Home Secretary to guarantee that EU citizens already in the UK can stay once Britain leaves. She has so far refused to offer reassurance, claiming to do so could reduce Britain’s leverage in Brexit talks with Brussels.

The Mayor also wants both candidates’ commitment to make staying in the single market and the retention of passporting rights a “top priority” during talks with Brussels, and for London to have a seat at the negotiating table.

He wants guarantees that key security and policing systems built up with European partners over many years are retained to help keep London and Britain safe.

Mr Khan also wants discussions on more powers to London to start straight away.

Local government secretary Greg Clark told the FT: “I am very keen to devolve more to London. I would expect London’s initial devolution to be followed by further powers.”