A man is in critical condition after being stabbed with a butcher knife during an altercation in downtown Toronto early Friday morning.Emergency crews were called to the scene near Peter Street and Queen Street West around 3:45 a.m. following reports of an altercation. Paramedics rushed the victim, an adult male, to the hospital with life-threatening injuries after he was found suffering from a stab wound to the stomach.Toronto police have not released any suspect information at this time, and the circumstances surrounding the incident remain unclear.Authorities are urging anyone with information to come forward.