A cyclist was left unconscious after being assaulted by two dirt biking youths wearing balaclavas in Clydebank.
Emergency services were called to the Dumbarton Road area at around 4.45pm after a 54-year-old man was assaulted.
It is understood the incident occurred after the man, a cyclist, collided with two male youths who were riding off-road dirt bikes.
The man was then assaulted to the point of unconsciousness and was subsequently taken to hospital.
Police have appealed to the public to come forward with information, having established that the youths were wearing balaclavas at the time of assault.
Chief inspector Kirsten McLatchie said: “Enquiries are ongoing to establish the full circumstances and we are appealing to anyone who witnessed what happened to please get in touch.
“We are aware of public concern around the use of off-road and e-bikes in the area and it is vital that we speak to members of the pubic with any information which could help us tackle this issue effectively.
“We would urge anyone who sees these bikes being driven in a dangerous manner in a public place to take note of the location, description of the rider, type of bike and anything else notable and pass this onto officers. This information is crucial and enables us to alert our partners and attempt to identify those involved.
“Anyone with information regarding this incident or the illegal use of these bikes in the area is asked to contact Police Scotland on 101, quoting incident number 2726 of Wednesday, June 5, 2024.
“Alternatively you can call Crimestoppers anonymously on 0800 555 111.”
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