File image of the kind of structural damage pyrite causes in homes. File photograph: Frank Miller/The Irish Times

A housing development under construction in Co Louth will have to be demolished following confirmation that all but one of the homes is contaminated w(...)

New houses on the Moneymore estate in Drogheda. Out of 25 new houses, six have pyrite. Photograph: Ciara Wilkinson.

Builders who had constructed 25 new homes for people on a council housing list yesterday began to take out doors, windows and any other reusable items(...)