The Correctional Service of Canada (CSC) said staff at Stony Mountain Institution recently seized more than $420,000 in contraband items.
A package with the items was found by staff members on Monday at 7:30 a.m. Officials said the package was on the perimeter of the prison's minimum security unit.
The contraband seized included cell phones and chargers, pre-paid SIM cards, THC concentrate, steroids, tobacco, cannabis, hashish, and rolling papers.
The estimated value of the seizure is $420,368.
The CSC said police have been notified and an investigation is underway.