Emergency crews were sent to HMP Wandsworth on Friday morning, where Russell Brand is being held ahead of his sentencing.
Brand, 51, was found guilty of one count of rape and three counts of sexual assault at Southwark Crown Court on Thursday.
Major emergency response
A major emergency response, including three ambulances, two ambulance cars and fire crews, was dispatched to the Category B prison at 9.46am.
A London Fire Brigade spokesperson said: “At 0946, Firefighters were called to HMP Wandsworth. The incident was over for crews by 1020.”
Ongoing story
This is a breaking news story, more to follow.