Updated: 11/08/17 : 16:17:00
Management are currently dealing with an incident at Mountjoy Prison in Dublin after a prisoner gained access to the roof.It is understood the incident happened just after 11am this morning when the inmate climbed a wall in the D division of the jail to get onto the roof.
A prison service spokesman says negotiators are currently working with the prisoner with a view to getting him down safely.
In the meantime, other prisoners in the prison have been locked in their cells while the standoff continues.A prison source: "This is a dangerous situation. Those walls are quite high and it would appear he went up there to collect contraband.
"The negotiators are trying to reason with him.
"This is understandably causing some anger as a number of visits have been cancelled."