The incident, which took place around 6.45pm on Thursday, October 31, occurred at Durrockstock Park in Paisley.
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A 49-year-old man was taken to hospital for treatment.
Detectives are now appealing for information following the assault.
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Detective Constable Jamie Howarth said: “Our enquiries are ongoing and we are appealing to anyone who witnessed the assault or has any information to come forward.
“Anyone with information is asked to contact police on 101 quoting incident 3507 of October 31, 2024. Alternatively, Crimestoppers can be contacted on 0800 555 111, where anonymity can be maintained.”
