The Old Ranks Flour Mill in Limerick was due to be demolished in the biggest controlled explosion in the history of the state. The outcome was not quite what was expected.

Once the biggest flour mill in the country, the Old Ranks building in Limerick has been gutted and prepared for demolition with a third of a tonne of plastic explosives. John O'Connor is in charge of the demolition and is confident that it will go to plan. 

Eight thousand tonnes of concrete standing a hundred feet high should be coming down.

As the explosion takes place it becomes clear that they have underestimated the strength of the building as it fails to collapse. 

An RTÉ News report broadcast on 18 May 1989. The reporter is Alasdair Jackson.