A motorcyclist was left with a broken jaw after a crash near Cardinal Park in Ipswich.
The incident happened in Grafton Way shortly before 12.30pm on Sunday, Suffolk police said.
A mini pit bike was approaching a roundabout when it collided into the rear of a grey Vauxhall Corsa.
The motorcyclist, a man in his 30s, suffered serious head injuries and a broken jaw.
Anyone who witnessed the collision or who has dashcam footage of the incident is urged to contact Suffolk police, quoting crime reference number 37/443/22.
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