Avon and Somerset Police are appealing for witnesses following a fatal collision near Taunton last night (Sunday).
The collision between a motorcycle and car happened on the A38 at Thurloxton at about 17:00.
A motorcycle was in collision with a car which resulted in the motorcyclist suffering serious injuries.
He died at the scene shortly afterwards.
The road was closed to allow collision investigators to examine the scene.
It was re-opened shortly before 04:00 this morning.
Police are keen to hear from anyone who was on the A38 at the time of the collision who may have information or dash cam footage of the incident.
Anyone able to help is asked to call police, quoting 5219266308.