Calgary police are looking for 54-year-old Michael Anthony Grodde, who has a history of violent sexual assaults.

Grodde, who also goes by the name Michael Mann, failed to report in to police as required this week.

Grodde "has a significant history of sexual assault with a weapon, sexual assault, indecent exposure and indecent phone calls," said Calgary police in a news release.

He has connections in Calgary and Manitoba.

Grodde is described as five-feet-nine-inches tall, approximately 185 pounds, with balding, grey hair and brown eyes.

He has a number of tattoos: a dragon on his right leg, a heart with a knife on his right forearm, a skull on his left forearm and a unicorn and demon across his shoulders.

Anyone with information is asked to contact the CPS non-emergency number 403-266-1234, or Crime Stoppers.