Police in Edinburgh are appealing for witnesses following a serious assault in the Gorgie area of the city.
The incident happened around 5.30pm on Wednesday 20th June in Stewart Terrace.
A 36-year-old man was walking down the steps leading from Slateford Road when he passed a group of around four or five men.
At this time the victim felt a pain in the back of his thigh and when he returned home he found he had sustained a laceration that required treatment at hospital.
Inquiries are ongoing to identify those responsible and anyone with information is asked to come forward.
The suspects are described only as being in their late teens or early twenties, and wearing dark jogging bottoms and hooded tops with the hoods up.
Detective Constable Gavin Howat from Corstorphine CID said: "This seems to have been an uprovoked attack, which left the victim with a painful injury to the rear of his thigh.
"As part of our inquiries we are keen to trace the men who were passed the man as he made his way down the stairs.
"Anyone who knows who these individuals are, or who has any other information that can assist with our inquiries is asked to come forward."
Those with information can contact Corstorphine CID via 101 and quote incident number 3327 of the 20th June. Alternatively, an anonymous report can be made to the charity Crimestoppers on 0800 555 111.