Police have closed Birchington Road in Grangetown following a serious road traffic collision.

The collision is believed to be between a young motorbike rider and a car near the Magnet roundabout.

Birchington Avenue in Grangetown closed following collision between a car and motorcyle near Magnet roundabout. Air ambulance in attendance.

— Zetland FM (@zetlandfm) August 14, 2016

The condition of the motorbike rider is believed to be serious.

The North East Air Ambulance landed on the scene at about 8pm.

Birchington Road expected to be closed for a number of hours while police carry out their investigations.