Officers are hunting a man believed to be involved in an assault where two men were left seriously injured.
The incident happened at about 7.45pm yesterday (Tuesday) in Gibraltar Gardens, Dalkeith.
Police said “several people” were involved in the attack.
A 26-year-old man and a 34-year-old man have been taken to hospital with serious injuries.
Police are appealing for information and said they are looking for a man who has been described as 5ft 8ins, aged in his late 20s to early 30s, short, had cropped brown hair and a muscular, athletic build.
He was wearing a light grey, zip-up tracksuit top and grey tracksuit bottoms at the time of the incident.
Detective Constable Mark Asquith, of Dalkeith CID, said: “We would like to speak to anyone who has CCTV in the area at the time this incident took place and also anyone who was driving and may have dash-cam footage that might help with our investigation.
“Likewise anyone who may have captured the incident on a mobile device is asked to get in touch. If you can help please call Police Scotland on 101, quoting incident number 3329 of Tuesday, 19 May, or make a call anonymously to the charity Crimestoppers on 0800 555 111.”