A teenage motorcyclist has been taken to hospital with life-threatening injuries following a crash in Cornwall.
The 17-year-old was not wearing a motorcycle helmet when the accident happened in Porthtowan at about 1745 BST.
Police said his motorbike appeared to hit a parked vehicle before going into the side of a residential property.
The Cornwall Air Ambulance airlifted him to hospital with serious head and leg injuries.
Anyone who witnessed the accident is asked to contact police.