Police are appealing for witnesses to two separate incidents. One involves a collision on Bishopthorpe Road on Friday evening while the second involved an assault in the early hours of Friday morning in Clifton.

1. Police are appealing for witnesses after a York cyclist sustained serious injuries when he was knocked from his bike on Bishopthorpe Road, York.

Just after 11pm on Friday 27 July 2012, a red Seat car collided with the cyclist at the junction with Charlton Street.

The Seat failed to stop at the scene and then went on to collide with a parked transit van further along Bishopthorpe Road before coming to rest upside down.

The cyclist, a 39-year-old man from York sustained serious head, neck and wrist injuries and was taken to York District Hospital where he remains in a serious condition.

The 15-year-old male driver of the car was arrested at the scene of the second collision on suspicion of numerous offences including taking a car without consent, drink driving and failing to stop after a collision.

Police are appealing for witnesses to either of the collisions or anyone who saw the Seat travelling in the Bishopthorpe Road area prior to the two collisions.

Anyone with any information is asked to contact Traffic Sergeant Julian Pearson by ringing 101, select option 2 and ask for Julian Pearson, or email julian.pearson@northyorkshire.pnn.police.uk

The 15-year-old youth has been released on bail while police enquiries continue.

2. York police are seeking witnesses to an assault on a French man in the early hours of Friday 27 July 2012.

Just after 4am on Friday morning, the 44-year-old man was subjected to a serious assault as he walked along Cromer Street.

The man sustained a serious chest injury and cuts to his upper body after unknown people kicked and punched him, causing him to fall to the ground. The suspects then fled the scene.

The man was taken to York District Hospital for treatment to his injuries.

Police have been carrying out house-to-house enquiries in the area. They are also appealing for anyone who saw or heard anything in the Cromer Street area of the city in the early hours of Friday to contact them.

PC Mark Proctor of York police, said: “This was a nasty, unprovoked assault and I am appealing for anyone who can assist the investigation to contact us as soon as possible.”

Anyone who can help the police investigation, is asked to ring North Yorkshire Police on 101, select option 2 and ask for Mark Proctor at York police station.