Drivers heading into Suffolk are being urged to be patient after a fatal crash closed part of the A14.
Emergency services are at the scene of the crash by Coddenham, where a motorcyclist and car collided at 2.30pm.
The motorcyclist was pronounced dead at the scene.
The A14 is currently closed westbound between junctions 50 by Stowmarket and 52 by Claydon while an investigation gets underway.
Arrangements are being made to take traffic off the A14 at Claydon.
A police spokeswoman said: 'Police are asking motorists to be patient as the closure is necessary for a full investigation to be carried out. Drivers are asked to find an alternative route if at all possible.'
Anyone who was travelling on this stretch of the A14 around 2pm and 2.15pm today who saw either of the vehicles prior to the collision or the crash itself is asked to call the Serious Collision Investigation Team at police headquarters on 101.
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