Members of the Civil and Public Services Union working at the Pensions Services Office in Sligo have voted overwhelmingly for industrial action in protest at the planned installation of three mobile phone masts on their offices.
Ninety-seven percent of members voted in favour of industrial action up to and including strike at the office, which is responsible for Old Age and Widows Pensions and the majority of One Parent Family payments nationwide.
450 people work in the office and a creche looking after 50 children is also on the site.
CPSU members have been campaigning for months to stop Vodafone installing the masts given the high concentration of people and children there.
The union says installing the masts is in breach of an agreement with the Office of Public Works.
It says that the antennae will be outside the OPW's own guidelines, as they would be within ten metres of a work station and within 25 metres of the creche.
