Concern is growing for the safety of an owner of two dogs who were found running loose but still wearing their leads in West Lothian on Tuesday.
It is understood a man usually walks the male black Labrador-type dog, and ginger collie-cross round the perimeter fence of Bathgate Golf Club every day.
He usually walks them between 0630 GMT and 0730 GMT, but police were called after the dogs were seen near the club.
The man is about 6ft 1in, in his late 30s-early 40s and of slim build.
He usually wears a black woolly hat and black bomber jacket. Both dogs were wearing brightly-coloured leads with a distinctive pattern.
A search of the area was carried out, and although CCTV the dogs are seen running around King Street in Bathgate at 0615 GMT on Tuesday, there was no sign of the owner.
The elderly black Labrador-type dog was handed in to police and is being looked after by the Edinburgh Dog and Cat Home.
But the other dog has not been found.
Temporary Insp Steven Tidy, of Lothian and Borders Police, said: "It is purely out of concern for the owner that we are making these efforts to identify them - the fact the dogs were found with their leads on suggests he may have fallen and been injured while out walking them.
"We have checked the black Labrador-type dog for an identity chip, but it does not have one.
"Inquiries are ongoing to establish who the dogs belong to, and we are appealing for anyone who may recognise the description of the man, or the image of the dog, to get in touch.
"We just want to make sure the owner is safe and well, and has not come to any harm."