Nurses at Dublin's Beaumont Hospital have voted in favour of industrial action because over emergency department overcrowding.
All of the hospital's members of the Irish Nurses and Midwives Organisation voted in favour of a work to rule on the 27th of January.
The news comes a day after the INMO reported a record 563 people on trolleys across the country - and follows the resignation of the HSE's Director of Acute Hospitals Dr Tony O'Connell.
INMO General Secretary Liam Doran says the action at Beaumont won't impact patient care - and more hospitals may follow.