RAIL union RMT exposed the “stinking” conditions faced by Britain’s appallingly low-paid Tube cleaners yesterday.

The union posted a video on YouTube showing disgraceful conditions at Finsbury Park station and published pictures of the “nightmare situation” faced by ISS cleaners at Clapham and Bards Green. 

ISS bosses have threatened to lock staff out of stations if they refuse to sign in using the controversial new fingerprint system, which cleaners have labelled an attack on their civil liberties.