A Chinese national studying in Canada was shocked multiple times by a man with a stun gun in a violent kidnapping in the underground parking garage of his condominium north of Toronto, authorities said Monday.

York regional police said Wanzhen Lu, 22, was walking with his friend toward the elevator of the Markham, Ontario building at around 6 p.m. on Saturday when a black van pulled up behind them after they got out of a Range Rover. Three men got out and ambushed Lu, dragging him into the van.

Police said they have found the van allegedly used to kidnap him.

Const. Andy Pattenden says they are still extremely worried about Lu's safety.

Police are looking for four suspects

Lu, who also goes by the name "Peter," is studying at a school in Toronto. He reportedly also drove a white Lamborghini and Rolls Royce.

He and a female friend who had been in the vehicle with him were walking toward an elevator in the garage at around 6 p.m. on Saturday when they were ambushed.

Pattenden said the friend wasn't taken, leading officers to believe Lu was targeted.

Security images show three suspects wearing jackets with their hoods pulled tight to their heads along with images of the van.

Pattenden said members of his family are on their way to Canada.

Police have not made contact with the suspects, Pattenden said, and to his knowledge no ransom demands have been made.

"This entire case is odd," Pattenden told reporters. "Abductions like this, especially with this level of violence used are very rare in this country."