If you thought traffic was very slow this morning, it was because of this.

Due to the power fault, there is no tram service operating on the red line between Smithfield and Connolly / The Point and on the green line between Broombridge and Sandyford.

Passengers, please be advised Green Line services are currently operating between Sandyford and Brides Glen only. No service between Sandyford and Broombridge.

Please be advised Red Line services are currently only operating between Tallaght/Saggart and Smithfield. There is…

— Luas (@Luas) December 10, 2025

“The service disruption has been caused by a power fault,” a Luas spokesperson said.

“Luas tickets are valid on Dublin Bus for the duration of this service disruption. We apologise for any inconvenience caused. 

“Luas technicians are on site and will work their way systematically along the Green Line to identify the source of the fault.

“Customers will be kept informed in real time via the Luas website, social media channels, and media traffic and travel updates.”

One of the green line Luas trams broke down outside Trinity College, causing traffic to build up on Westmoreland Street in the centre of Dublin city.

⚠️Trinity⚠️

There is a Luas broken down outside Trinity College. Traffic building on Westmoreland Street.@DCCTraffic

— LiveDrive (@LiveDrive) December 10, 2025