Police in Manchester respond to reports of a stabbing in the city centre during the early hours of the morning. According to the reports, emergency services are called to the Northern Quarter district after an incident is reported on Oldham Street. The victim is described as a 20-year-old man. Police urge members of the public to come forward with information that may help with the investigation. The available accounts focus on the location and timing of the incident and on the request for witnesses or anyone with relevant details to contact police. No details about the circumstances leading up to the stabbing, the suspect, or the victim’s condition are provided in the supplied information. The investigation is ongoing, and authorities are seeking assistance to establish what happened in and around Oldham Street in the early hours.