An inmate has been stabbed to death at Wormwood Scrubs prison, police have confirmed.
Scotland Yard said officers were called at 15:19 GMT to reports of a male with stab injuries at the jail in west London.
He was pronounced dead at the scene despite the efforts of paramedics. Police said they are trying to contact the victim’s next of kin.
No arrests have been made and a post-mortem will be held in due course.
Built during the Victorian era, Wormwood Scrubs is a Category B prison with a capacity of 1,279 inmates.
Records from December last year show 1,131 prisoners were being held at the jail, based in East Acton.
An inspection report published in the same month found the jail had chronic staff shortages, food supply issues and a surge in violence.
HM Inspectorate of Prisons warned that Wormwood Scrubs was “still not safe enough”.
At the time, the Ministry of Justice said the jail was recruiting staff in a bid to “urgently” raise standards.