Two teenagers have been injured during a large scale disturbance at a park in East Renfrewshire.
Police Scotland said a boy, aged 16, was stabbed, while another 16-year-old suffered a head injury during the incident in Clarkston.
A large number of school students are thought to have gathered in Overlee Park to celebrate their exam results.
According to some reports on social media, they were attacked by other youths who got out of a van.
Both injured teenagers were taken to the Queen Elizabeth University Hospital in Glasgow . There were no details of their condition.
A large number of police vehicles, including a helicopter, and ambulances were sent to an area between the park and Netheron Braes at about 20:15 on Tuesday.
Det Sgt Gordon Walker said: “Our investigation is at an early stage to establish more information on those involved in this disturbance, and officers are currently carrying out enquiries in the area to gather more details on the incident.”
Anyone with information is urged to contact the Helen Street police office.