Conservative mayor race ad shows New York instead of London

“Gripped by the tendrils of rising crime” it continued, “London citizens stay inside”.

“The streets are quiet.”

Mr Khan said the Conservatives were being “unpatriotic” for “doing our city down”.

“It’s another example of my fear materialising, which is this election, from the Conservative Party, will be one where there’s misinformation, where there’s lies and, in this case, clearly videos that weren’t of this city, it was New York,” he said.

Responding to the video’s claim that crime in the capital had risen during his time in office, he said: “Because of government cuts over the last 14 years we’ve lost thousands of [police] officers.”