Lethbridge police say they can confirm that high-risk sex offender Michael Sean Stanley was in the southern Alberta city last Friday.

Stanley's vehicle, a purple Chevrolet Blazer, was seized from a west-side home Monday but his whereabouts are still not known.

Michael Stanley

Lethbridge police believe that high-risk sex offender Michael Stanley, who is currently the subject of a multi-province search, has been and may still be in the southern Alberta city. (Lethbridge Regional Police)

Police said he has family ties in the area and the violent, high-risk offender may still be in southern Alberta. He has a long history of sexual offences against women and children. 

Stanley, 48, has been the subject of a multi-province search since he cut off his electronic monitoring bracelet on Oct. 1 in Lloydminster. The bracelet was found on the roof of a local business. 

He is now wanted for breaching the conditions of his release.

"Mr. Stanley poses a significant risk to the community and we are advising everyone to be vigilant about their safety, but not to take any vigilante action," Lethbridge police said in a news release Monday afternoon.

Stanley is described as about five feet nine inches tall, 190 pounds, with black hair and brown eyes.

Last week, schools in several west-central Saskatchewan communities locked their doors and kept children inside after Mounties got multiple, unconfirmed sightings of the Edmonton man.

Schools locked down

Schools in Lloydminster, Kindersley, Coleville, Eston, Marengo, Eatonia and Plenty went into what police called "hold and secure" mode, which meant children were locked in the building during the day and parents had to pick up their kids when classes ended.

Mounties also said there was a possible sighting of Stanley in Rosetown, Sask.

Over the weekend, Saskatchewan RCMP say they got more than 25 reports of possible sightings of Stanley from across the province.

The sightings were of a purple Blazer or someone resembling Stanley.

Mounties say a school in Beechy, Sask., was in hold and secure mode Monday due to a possible sighting of Stanley on Friday near the small community.

Stanley is on Alberta's high-risk offender list.

He was released from jail in April 2011 after completing a 32-month sentence for assault and forcible confinement, according to Edmonton police at the time.

That advisory said Stanley is considered by police to be "an untreated violent and sexual offender who poses a risk of significant harm to the community."

Stanley was being monitored by police under a peace bond, which authorities can get to impose conditions on individuals in the community.

His peace bond has 20 conditions, including that he stay away from children.

With files from CBC News