A 23-year-old man has died after a crash in Leadwell Lane in the Robin Hood area of Leeds.
The man, from Batley, died in the Leeds General Infirmary on Sunday, February 24.
His red Yamaha YBR125 motorbike was involved in a collision with a grey Volvo V40 near to the junction with Copley Lane.
Police are asking anyone who witnessed the collision to contact the Major Collision Enquiry Team via 101 quoting Operation Planwick.
Officers are particularly keen to hear from anyone who was driving in the area and has any relevant dash-cam footage that could assist the investigation.