Police in Saskatchewan and Alberta are looking for help in finding a convicted sex offender with ties to Saskatoon.

Calgary police have issued a warrant for 44-year-old Calvin Lynn Korsberg. He is wanted for breaching a probation order after being released from prison.

He was sentenced in Alberta for sexual assault, theft and possession of a controlled substance. In 2005, Korsberg lead Saskatoon police on a brief chase. He was eventually charged with two counts of sexual assault, failing to stop for police and dangerous driving.

Anyone with information on the whereabouts of Calvin Lynn Korsberg is asked to contact police or Crime Stoppers.