The statement added that the police "must continue to fear for the well-being of Mr. Lu," and urged his captors to release the 22-year-old unharmed and give himself up.
Lu and a friend ended his car in an underground car park in the city of Markham, Ontario on Saturday night when four masked men grabbed him, the police said. One of the attackers wore a taser and used it for Lu as he tried to resist. Lu's friend was unhurt.
Surveillance videos released by the police showed men with thick black jackets whose faces were covered and grabbed Lu and grabbed him in a black minivan with stolen plates. It was later found abandoned in nearby Toronto.