A mother who abandoned her newborn baby in woodland in Edinburgh is being urged to contact police.
Medical staff said Gary was lucky to be alive
The boy, named Gary after the first officer on the scene, was found after a passing couple heard him crying in Holyrood Park late on Friday night.
Staff at the Simpson Maternity Unit said the 6lb baby was healthy.
Gary is thought to have been abandoned within an hour of being born and police said they were anxious to trace the mother, who may need medical attention.
A spokesman for the Lothian and Borders force urged the woman to contact a doctor, a hospital or the police.
"The mother may be traumatised by having the baby and then abandoning it but she may also need urgent medical attention," he said.
"For her own well-being we appeal to her to come forward immediately to get the support she needs."
He said the baby was in good hands but that the mother could be weak and distressed.
Health and welfare
"We understand she must have been under very great stress to take such a drastic step and may have felt her only option was to abandon the baby," he added.
"We want her to know that our concern is for her health and welfare and would want to find her quickly to get her the critical help she will need."
Police said they could not rule out the possibility that the baby was born in the park, or that someone else brought him there.
The baby was found in woodland in Edinburgh
"Anyone who has seen any person in that vicinity from early in the evening until just before 2330 BST is asked to contact police urgently," added the spokesman.
Dr Paula Midgley, consultant neo-natologist at Edinburgh Royal Infirmary, said Gary was "very lucky" to be alive.
"He would not have lasted much longer in the open," she said.
"He was already very hypothermic when he arrived. That is a huge stress for any baby.
"Although he is looking extremely well now we want to observe him for another couple of days to make sure there are no lasting effects."