A Chinese citizen believed to be the victim of a kidnapping near Toronto over the weekend has been found in good health but his abductors are still at large, police say.

Const. Andy Pattenden with York Regional Police told a news conference that Wanzhen Lu, 22, walked up to a home on Doe Lake Road in Gravenhurst, Ont., on Tuesday night and said he needed help.

The residents called Bracebridge Ontario Provincial Police, where officers confirmed Lu’s identity with York Regional police.

Sgt. Jason Folz, a spokesperson with the OPP, told CTV News that Lu appeared to have minimal injuries and is being interviewed by police at a hospital in Bracebridge.

Lu had been missing since Saturday evening, after he pulled into the parking garage of his condo building in Markham, Ont., in his Land Rover Range Rover.

York Regional Police have said that surveillance video shows three men shocking him with a stun gun, forcing him into a van and driving away.

A woman who arrived with Lu was physically unharmed and immediately contacted building security. Police have not said how she is connected to Lu.

On Tuesday, police said that a 35-year-old Toronto man had been arrested early that morning at an undisclosed location in connection with the kidnapping. However, he has since been released "unconditionally" without charge.

Police are seeking a total of four male suspects in the case. They have not been identified publicly, and police have said they have no information about a possible motive.

Pattenden said the investigation is "far from over" and that police will "continue with this until those four suspects are found and brought into custody."

Lu is a Chinese national studying at a school in Toronto, which borders Markham. He sometimes uses the name Peter when in Canada, and has been known to drive high-end cars including a Lamborghini and a Rolls-Royce.

Pattenden told reporters that relatives of Lu had travelled from China to Canada following his disappearance.

“I can tell you that our investigators have been in very close contact with Lu’s family prior to their arrival in Canada from China and since they’ve been here our investigators have been able to provide this great news to the family, who I’m sure are sincerely relieved at this time,” he said.

The minivan believed to have been used in the kidnapping was found in Toronto Sunday night following a tip to police from a member of the public.