Breakdown at Queen Street station causes trains chaos.
COMMUTERS and motorists faced lengthy delays last night.
A freight train broke down at Cardiff Queen Street railway station, causing services to be stopped.
A spokesman for Arriva Trains Wales confirmed a freight train had been stopped at Cardiff Queen Street station after sparks were noticed on the undercarriage of the engine.
The train was moved and lines were reopened at around 5pm.
Originally, it was estimated services would be affected for 30 minutes - but delays were felt until late in the evening, despite the lines having been reopened.
There were issues affecting a number of services.
A Network Rail spokeswoman said: "Lines through Queen Street have reopened following a fault found with a freight train earlier this afternoon. Safety is a key priority, and trains were unable to travel through Queen Street station while the train was examined and then moved for repair. A trespasser on the line also caused delays to train services in to Queen Street."
The spokeswoman said they had worked with Arriva Trains Wales to keep passengers moving.
Arriva Trains Wales cancelled or changed a number of services in an attempt to get the timetable back on track as quickly as possible.
In a separate incident, trespassers on the railway at Heath High Level caused all lines to be blocked.
There were also two separate road crashes in Cardiff.
A two-vehicle collision on the M4 junction 33 interchange at Cardiff West at around 4.30pm left roads "extremely congested". A woman was taken to hospital following the incident.
South Wales Fire and Rescue Service crews were also called to an incident at Coryton which left two lanes blocked.