An arrest warrant has been issued for a man wanted in connection with two violent chokings and robberies.

Police say suspect Andrew Krizmanits, 42, may be headed to, or currently in, Eastern Canada or possibly the Sunshine Coast.

Krizmanits, of no fixed address, is well known to police. He has been charged with two counts of robbery and two counts of attempting to choke to overcome resistance.

On the morning of Aug. 18, police allege Krizmanits approached a 45-year-old man riding a bus headed toward the Marine Drive Canada Line station. According to police, he befriended the man, followed him off the bus, asked him for a cigarette and when the victim refused, tackled him and placed him in a headlock until he lost consciousness.

CCTV at Vancouver's Stadium SkyTrain Station recorded a suspect before he is alleged to have taken part in a violent robbery. Transit Police say the man is responsible for two thefts in which he put his victims in a headlock, choking them until they were unconscious. 0:17

Upon regaining consciousness, the suspect asked the victim to buy him a drink at the Marine Drive Canada Line Station store, but when the victim entered the store, police say Krizmanits stole his phone and fled on the train.

Police say the second robbery occurred late on Aug. 20 when Krizmanits started a conversation with a 26-year-old man at the Stadium SkyTrain Station.

He grabbed the man when he tried to leave, placed him in a headlock and choked him until he was unconscious before stealing his wallet and credit cards .

Metro Vancouver Transit Police say they are "very concerned by the level of violence Krizmanits is willing to use."

He is described as a Caucasian or Indigenous man, between five feet eight inches and five feet 10 inches tall with a stocky build and short brown hair.

Anyone with information on his whereabouts is asked to contact Transit Police at 604-515-8300 or text them using code 87-77-77 and refer to file 2019-15236.