THE motorcyclist involved in the collision on the slip road for the A40 at Marston yesterday remains in a critical condition in hospital, police have said. 

The 74-year-old man suffered a serious injury to his head and leg and was taken to the John Radcliffe Hospital

It happened just before noon on the B4150 Marsh Lane and involved black Vauxhall Zafira and a blue and white motorbike. 

Thames Valley Police want anyone who witnessed the collision or saw the vehicles before to cnotact them on 101.