A man was taken to hospital after being stabbed with a broken bottle during an assault in Greater Manchester, police have said.
Officers were called to an address on Argyle Street in Rochdale at 05:30 GMT following reports of a stabbing.
A 22-year-old man was found to be suffering wounds believed to have been caused by a broken bottle.
He was assaulted during a disturbance at the property and his condition is described as serious, officers said.
They have urged witnesses to get in contact.