It's after five inmates have tested positive for Covid 19.
Mass testing is underway in the biggest prison in the country, after an outbreak of coronavirus.
Five inmates have tested positive for Covid 19 in the Midlands Prison in Portlaoise, in one part of the jail.
They've all been isolated from the rest of the 800 prisoners.
Laois Offaly Sinn Fein TD Brian Stanley says steps must be taken to ensure it doesn't spread into the community:
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