The man was Tasered four times before officers were able to arrest him, police say.

An 18-year-old is charged with threatening to cause death or harm after entering a store on Pendygrasse Road say police.

Police say the search warrant happened Thursday, April 30, along Cook Road in the Lower Mission area of Kelowna.

Officers say they tried to negotiate with the man before Tasing him.

The Alberta Serious Incident Response Team is investigating after police used a Taser on a 20-year-old man immediately following his arrest in northern Alberta last week, sending him to hospital.

Police say the man charged at officers early Wednesday while brandishing a knife.

Regina police Tased the man after he allegedly rushed at officers with a "large knife sharpener."

Police say the man was showing "assaultive and threatening behaviour," and brandished a weapon at officers.

Police also seized two cocaine presses and scales, the Ottawa Police Service said in a news release on Thursday.

Saskatoon police said they had to Taser a man creating a disturbance in a waiting room at St. Paul’s Hospital.