Talks aimed at preventing strike action at the British Embassy in Dublin are due to resume this morning.
Workers have been balloting on possible strike action amid growing fears about job cuts.
Their trade union, Unite, says that three senior staff members have been warned that they could be issued with compulsory redundancy notices in the coming weeks.
Talks between the union and embassy officials were adjourned last night, but will resume this morning.
The result of the workers' strike ballot is also expected to be known later today.