Inspectors have raised fears over high levels of violence at a prison with a high population of gang members, inspectors have warned.
In 2013, there were 254 fights and assaults at Isis prison, which holds young men aged 18 to 30, with 120 in the previous six months, Her Majesty's Inspectorate of Prisons (HMIP) said.
Many incidents were serious and some involved gangs at the prison in south-east London, HMIP said, with a higher proportion than usual involving weapons.
There were many planned assaults involving a number of inmates against a single prisoner, and some incidents were known to be gang related, inspectors added.
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