On-call firefighters are to strike for a second time in two months over pay and conditions in the service.
SIPTU says members have voted to reject Labour Court recommendations supposedly offering "an interim solution" to their dispute.
The union says stations across the country have "dangerously low levels of crew on call out".
Previously suspended strike action is set to resume next Wednesday.
Brian Murray is a firefighter in Bray in Wicklow and says the brigade is collapsing:
"Stage 3 of the strike action will commence next Wednesday, that would be a full return to non-correspondence with radios."
No drills, no training, no equipment checks. After two weeks of doing that we'll reassess with the national committee and see how we'll escalate from that."