A man is fighting for his life after he was brutally attacked in a street.
The man was found in Manchester's Oxford Road just before 5am on Monday morning.
Police say he has been taken to hospital with a head injury and remains in a critical condition following the assault
Crime scene investigators and officers from Greater Manchester Police were seen in the area in the hours after the attack.
A police tent was also erected by police as they worked.
A spokeswoman for Greater Manchester Police said: "Police are appealing for information following an assault in Manchester.
"At about 4.50am this morning (Monday 6 September 2021), police were called by the ambulance service to reports of an assault on Oxford Road, Manchester.
"Officers attended and a man has been taken to hospital with a head injury where he remains in a critical condition.
"No arrests have been made and enquiries are ongoing."
Detective Inspector Peter Morley, of the force's City of Manchester Division, said: "This incident has resulted in a man suffering serious head injuries.
"Our enquiries are still in their early stages, however, we are doing all that we can to establish the full circumstances of this assault and find those responsible.
"If anyone was present at the time and witnessed anything, please do not hesitate to make contact with police."
Anyone with information should contact the police on 0161 856 2220, quoting incident number 465 of 06/09/21.
Reports can also be made anonymously to the independent charity Crimestoppers on 0800 555 111.
