Ambulance staff will decide next Friday when they'll have their next strike.
500 paramedics from the Psychiatric Nurses' Association were on the picket-line until 2pm yesterday afternoon.
A number of staff from Sligo and Letterkenny University Hospitals were a part of the strikes.
It was their second 24-hour strike over union recognition.
The HSE refuses to deal with the National Ambulance Service Representative Association, a branch of the PNA.
Sinead McGrath, NASRA's chairperson, says the campaign won't end today.
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