Greater Manchester Police has given a statement following the incident in Droylsden last night.
Detective Inspector Paul Cawsey, of Tameside CID, said: "The investigation is at an early stage as we try to establish the motivation behind this incident that has resulted in a man being treated at the scene and in hospital.
"It is believed the assault was carried by a number of individuals using weapons that have caused serious injury to the victim.
"We have officers in the area as we continue our investigation and to provide a reassuring presence.
"We are asking members of the public with information or who were in the area last night, especially anyone with CCTV, doorbell or phone footage, to contact us on 101 or Crimestoppers on 0800 555 111 quoting log 2715-30/01/2026."
