A 22-year-old Chinese student has been kidnapped by four men with a stun-gun, police in Canada say.
Three men grabbed Wanzhen Lu and forced him into a van in an underground car park in Markham on 23 March.
Officers have now released images of the student and the clothing he was wearing at the time of the kidnapping.
The motive for the kidnapping is not yet known but a police spokesperson said the level of violence was "significant."
Mr Lu was approached by three masked men as he walked in the car park with a female friend shortly before 6pm.
ARMED KIDNAPPING - We need your help to locate 22yr-old Wanzhen LU, kidnapped by 3 masked men, one armed with a taser from an underground parking garage at 15 Water Walk Dr, Markham. Suspect van is black Dodge Caravan with stolen plate: CEAR350. Call 866-876-5423 x7541 with info pic.twitter.com/37bFP0jhb8— York Regional Police (@YRP) March 24, 2019
He was grabbed by the suspects and forced into a black wheelchair accessible Dodge Caravan which was driven away by a fourth man.
In the process, Mr Lu was shocked by the stun-gun.
Constable Andy Pattenden, spokesperson for York Regional Police said Mr Lu was taken "100 percent against his will" and his female friend was not harmed in the incident.
"Police as well as his family are very concerned for his wellbeing and we need to find him as soon as possible", he added.
Mr Lu was wearing a black sweatshirt, black jeans and glasses at the time of the kidnapping.
Officers have also released CCTV images of the attackers and the vehicle.
ARMED KIDNAPPING UPDATE - 22yr-old Wanzhen LU was kidnapped just before 6pm yesterday from 15 Water Walk Dr, Markham. If you spot this wheelchair accessible Dodge Caravan with stolen plate:CEAR350 call 9-1-1 immediately. Click the link for more info --> https://t.co/vZdrW5pWgW pic.twitter.com/ffnqGH3lEw— York Regional Police (@YRP) March 24, 2019
Police are liaising with the Chinese consulate.
Officers have asked anyone who has seen the suspects, vehicle or the victim to call 911.