A PRISONER kept up a rooftop protest for the third day yesterday to highlight the conditions that he and other inmates are living in.

Stuart Horner, jailed for life three years ago for the murder of his uncle, climbed onto the roof at HMP Manchester, formerly known as Strangeways, on Sunday afternoon.

He stripped to his Manchester United boxer shorts and has pulled up metal roof trusses and used them to smash large skylight windows and attack CCTV cameras.

Around 60 inmates have been transferred due to the protest, with dozens of firefighters and police on standby outside.

Yesterday, he took off his clothes to reveal messages written on his shirt. The first said: “It’s not 1990, tell the Gov we’ve all had enough. Sort the whole system.” A second message said: “Innocent.”

Strangeways was the scene of major prisoner riots in 1990, sparked by appalling conditions and insufficient staff.

Lord Woolf warned earlier this year that inmates were again being kept in “conditions that we should no longer tolerate.”