A COLLISION involving three cars and a van this morning (May 25) saw a lane closed on one of the busiest routes into Cardiff.

The collision happened between the M4 junction 33 Cardiff West and Culverhouse Cross at approximately 8am this morning.

One lane was closed which has caused delays on the A4232.

Emergency services were on the scene and one person was taken to hospital via ambulance.

Congested traffic has started to move slowly following the lanes re-opening, however delays of around 15 minutes are expected according to traffic monitors in the area.