A man was found in a street with facial injuries, scratches and bruises across his body after taking a taxi from Liverpool city centre to Hunt Cross.
The 23-year-old was taken to hospital after a member of the public found the injured man in Hillfoot Avenue.
Now Merseyside Police has launched an investigation into how the man got his injuries.
Police say it is believed the man had "taken a taxi journey" prior to being discovered in the street during the early hours of Saturday and detectives are appealing for anyone with information to come forward.
A Merseyside Police spokesman said: "The man was found injured in Hillfoot Avenue, Hunt Cross by a member of the public at around 12.30am on Saturday, September 12.
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"He had been out in Liverpool city centre with friends prior to being found and is believed to have taken a taxi journey to the Hunts Cross area.
"He was taken to hospital for treatment for injuries to his face and scratches, cuts and bruising to his body."
Police said they are trying to establish if CCTV is available to help their investigation.
Anyone who has any information is asked to DM @MerPolCC quoting reference 20000550960 or contact the independent charity @CrimestoppersUK anonymously on 0800 555 111, or via their website: https://crimestoppers-uk.org/give-information/forms/give-information-anonymously
