Police said a man was found stabbed on board a TTC streetcar at Dovercourt Rd. and Queen St. W around 1:15 p.m. on Tuesday afternoon.
Toronto Police said the victim was transported to a local trauma centre with serious but non-life threatening injuries.
The suspect was described as a Black male, 5-foot-10, with a scruffy beard and wearing a navy puffer jacket with an olive-coloured hood, and dark jeans with black plastic bags coming out of his pockets.