Police are trying to trace a dog walker who could be a key witness to a suspected hit and run in Lancaster.
Officers were called to Morecambe Road on Tuesday - a pedestrian had been hit by a van and left in a serious condition.
A blue Transit Van was abandoned in Fairhope Avenue, and two men, wearing light coloured tops, were seen to run down the alley towards Richmond Avenue.
As they ran, they passed a woman walking a small dog.
The two men are being urged to hand themselves in.
If anyone has any information they're asked to make contact with police.