Irish Rail management say they will not be affected by tomorrow's Bus Eireann strike.
However unions say they can't rule out the possibility of the action spreading to other CIE services.
There are seven depots with shared services – which means some staff would have to cross a picket to go to work.
The NBRU's Dermot O'Leary says it is also possible that Dublin Bus and Irish Rail workers might strike in sympathy with their colleagues.
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Thousands of people lined the streets of Derry earlier as the former IRA commander was laid to rest.
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The Westminster terrorist attack has claimed another victim.
A 75 year old man has died in hospital - taking to four the number of people killed by Khalid Masood.
Eight people have been arrested in London and Birmingham by detectives investigating the attack.
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The bank is hoping that as many of these redundancies as possible will be voluntary. Previous Ulster Bank downsizing has seen redundancy schemes oversubscribed.
The closures are set to take place in June and September, leaving the bank with 88 branches in the Republic.
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The force has also admitted there is a huge discrepancy in their recorded breath test figures.
Between 2006 and 2016, there were 147,000 offences where a court summons was issued instead of a fine.
Of those, 96% had other offences that could have landed them in court - but almost 6,000 had no other offence and should have instead received a fixed charge notice.
All these cases will be appealed in court with the Gardaí not contesting the cases - meaning fines, possibly in the millions, will have to be repaid.