Police are looking to trace a man who brought a teenager to hospital in Edinburgh, but left without giving any details.
At around 6.20pm on Saturday, a 17-year-old male with serious injuries was assisted to the Royal Infirmary of Edinburgh by the man, who left before any details were taken by staff.
The man has been described as white, in his 50s, and had receding hair. He was wearing glasses, a blue Adidas top and was carrying a rucksack.
Police currently do not know how the 17-year-old got hurt.
So far, they have found that he was at an event in Craigmillar Park on Friday evening, and had become separated from his friends.
They were unable to get a hold of him, and it was only when he was admitted to hospital that his family were made aware of where he was.
Detective sergeant Keith Morrison said: “At this time, we don’t know how the young man sustained his injuries so it is imperative that we trace the man who took him to hospital so we can find out what he knows.
He added: “If you are the man described, or have any information that may assist our investigation, then please call officers at Gayfield CID via 101, quoting incident number 2960 of Saturday, August 19.
“Alternatively, details can be given in confidence on 0800 555 111.“
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