DETECTIVES are appealing for information after objects were thrown from a moving vehicle causing injury to three people.
Officers were called to Main Street, Billinge, at 7pm on Thursday.
A man in his 50s was lying unconscious on the pavement, emergency services attended and the man was found with a small puncture wound to the side of his head.
It is believed a small object was thrown at the victim from a moving silver Vauxhall Astra. The man was taken to hospital.
Police were later called at 7.10pm to College Street following a report that small objects had been thrown at two youths walking along the street.
One of the youths, aged 15, suffered a facial injury that required hospital treatment.
Police were later called to Church Road, Haydock, at about 9.30pm following a report from a member of the public that an object had been thrown at them whilst walking along the street.
Officers then received a further report of a boy being struck with an object thrown from a silver Vauxhall Astra whilst walking along Crow Lane East at about 10.15pm.
The victim suffered a bruise to his face following the incident.
A full investigation into the incidents is under way and officers are checking CCTV from the area and speaking to witnesses in a bid to identify the people responsible.
It is believed all four incidents are linked.
Anyone with information about any of these incidents is urged to call Merseyside Police on 0151 777 6802 or 0151 777 6013 or Crimestoppers, anonymously, on 0800 555 111