Montreal authorities have confirmed that a severed human head found in a city park over the weekend belongs to murdered Chinese student Jun Lin.

A tip led homicide investigators on Sunday to Angrignon Park, a vast green space in Montreal's south western region, where they found what appeared to be a human head, near a small lake.

Forensic testing on the remains concludes that "what was found is actually related to the 11th homicide on our territory — that is, the Magnotta case," said Montreal Const. Anie Lemieux.

Luka Rocco Magnotta. (Berlin Police)

Toronto-area native Luka Magnotta has pleaded not guilty to first-degree murder and other alleged offences in Lin's death.

Lin was a Chinese national and Canadian resident who was a student at Montreal's Concordia University until he disappeared in late May.

His torso was found shortly after in a Montreal trash pile, while other body parts were shipped to the offices of Canadian federal political parties and Vancouver schools.

Lin's head remained missing until Sunday's grisly discovery.

The 33-year-old student's family travelled to Canada from China after his death, and have met regularly with Montreal authorities, who said finding the rest of his remains was a priority.

A private service was held last week at Concordia University.

Magnotta was extradited from Berlin, Germany after an international manhunt tracked him down in an internet café, where he was reading online news reports about himself.

The 29-year-old has requested a trial by judge and jury. His 10-day preliminary hearing, scheduled for March 2013, will be preceded by a pre-trial hearing in January.