Long delays are being reported on the Luas in Dublin this evening.
The company has taken to twitter to apologise to costumers, saying drivers are working to rule.
Apologies - the #Red Line is experiencing long and significant delays. Drivers are working to Rule.
— Luas (@Luas) February 20, 2016
It is understood the action is affecting Red Line services in particular.
The company also said that Dublin Bus will accept Luas tickets.
Dublin bus are accepting Luas tickets
— Luas (@Luas) February 20, 2016
It follows a 48-hour strike on the service this week, which discommoded 90,000 passengers.