Detectives from the Serious Collisions Investigation Unit (SCIU) are appealing for information and witnesses following a fatal collision in Kensington.
Police were called on Sunday, 13 May at around 23:00 hours to a report of a collision between a car and motorcycle in Holland Road junction with Shepherds Bus Roundabout, W14.
Officers attended along with the London Ambulance Service and found the motorcyclist, a 29-year-old man injured.
He was declared dead at the scene at 00:06 hours.
His next of kin have been informed.
Formal identification awaits.
The driver of the car stopped at the scene and is assisting police with their enquiries.
Officers from the Serious Collisions Investigation Unit are investigating.
Anyone with information should contact the SCIU on 0208 543 5157.