A power fault has caused disruption to Luas services in Dublin with traffic delays reported across the city centre.
There is currently no service across the whole of the Green Line.
The Red Line has fully reopened after being suspended between Smithfield and The Point and Connolly.
Luas tickets are valid on Dublin Bus for the duration of this service disruption.
The power fault has also caused diversions to a number of Dublin Bus services on Nassau Street.
Luas operator Transdev apologised for any inconvenience caused.
Technicians are on site and will work their way systematically along the Green Line to identify the source of the fault, the operator said.
It added that it will provide an explanation of the cause of the power outage once power has been fully restored and maintenance teams have completed their analysis.
The service disruption has caused knock-on effects with traffic delays reported in the city.
There was also heavy traffic at Dublin Port and surrounding areas this morning with heavy volumes reported entering the port and traffic held and metered for a period in the Port Tunnel.