A driver and a pedestrian were killed when a car ploughed into two people on a road close to a showground.
The horror collision happened on the A1074 Dereham Road, near Norfolk Showground, at 5pm on Friday.
A blue Subaru Legacy car struck a man and a woman who were walking on the road west of Norwich, according to police.
The Subaru's driver - a man in his 30s - and the male pedestrian, aged in his 40s, both died at the scene.
The woman, aged in her 50s, suffered life-changing injuries and is in a serious condition in hospital, said Norfolk Constabulary.
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An air ambulance landed close to the scene.
The road was close until just before 1.30am on Saturday.
A spokesperson said: "Police can confirm two men have died following a collision near Norfolk Showground.
"The incident happened on the A1074 Dereham Road close to the Norfolk Showground at 5pm yesterday when a blue Subaru Legacy car was involved in a collision with two pedestrians.
"Sadly, the driver of the Subaru, a man aged in 30s, died at the scene. One of the pedestrians, a man aged in 40s, was also pronounced dead at the scene.
"The second pedestrian, a woman aged in her 50s, sustained life-changing injuries and was taken to the Norfolk and Norwich University Hospital. She remains in a serious condition.
"Officers would like to hear from witnesses and anybody who may have seen the manner of driving of the vehicle immediately before the collision.
"They're also keen to speak to anybody who was in the area at the time and has dash cam footage."
