MPs urge TFL to review procedures after unauthorised anti-Israel adverts appeared on tube trains

In their letter, Ms Siddiq and Mr Streeting the posters were “gesture politics” and “inflammatory”.

“The clear upset caused by the vandalism is bad for community cohesion,” they wrote.

“We believe it would be in the best interest of communities across London, those affected by conflict or otherwise, for this issue to be resolved through a review of the steps taken to protect advertisements from being defaced.”

The MPs, who are both vice-chairs of the All-Party Parliamentary Group Against Antisemitism, said their constituents in Hampstead and Kilburn and Ilford had voiced their concerns about the posters, as had faith leaders.

They concluded: “Given the troubling nature of recent vandalism we believe TfL needs to review its safeguards to prevent this from reoccurring... yet action so far seems to be reactive.”

British Transport Police are investigating the episode.

TfL has yet to respond to the letter.