A COUNTY Limerick secondary school had to be evacuated this Wednesday while the army bomb disposal unit carried out a controlled explosion on a hazardous chemical discovered in the science laboratory.
410 pupils at Colaiste Iosaef in Kilmallock were sent home shortly before lunch-time as a safety precaution.
The chemical 2,4-Dinitrophenylhydrazine was discovered in a science laboratory in the school building by a teacher who had observed that it had crystallised, making it potentially dangerous.
Sean Twomey, princpal, alerted the ardai and two units of Charleville Fire Service and one unit from Kilmallock were called to the scene. The assistance of the army bomb squad was subsequently requested and a controlled explosion was carried out this afternoon.
The school will re-open as normal this Thursday.