Police are appealing for information following a road traffic collision on the Ring Road at Wickes Roundabout.
At around 3.12pm on Thursday 26 September, a grey Fiat Punto and a white BMW car collided at the roundabout.
The driver of the Punto, a man in his 70s, sustained a serious injury in the collision.
Officers in the Roads Policing Unit are appealing for anyone who witnessed the collision or anyone who may have dash-cam footage of the incident to contact police.
Anyone with information can contact police online via www.westyorkshire.police.uk/contact-us, quoting reference 13190497675. Or call West Yorkshire Police on 101.