A teenager required hospital treatment after being attacked on a street in Greenock.
The 15-year-old was assaulted between 11pm on Saturday and 12.20am on Sunday at the junction of Kilmalcolm Road and Corlic Street.
Emergency services attended the scene and the teenager was taken to the Royal Children’s Hospital in Glasgow for treatment to serious injuries.
His current condition is unknown.
Police are now appealing for any witnesses or anyone with information to come forward in relation to the incident.
Constable Agnieszka Telford said: “Our enquiries into this incident are ongoing and I would urge anyone with information to get in touch.
“We would be keen to speak to anyone who may have seen or heard any disturbance in the area, or who may have dashcam or private CCTV from the area.
“Anyone with information can call 101, quoting reference 0939 of August 29, or call Crimestoppers on 0800 555 111.”