An Ontario company that repairs heavy-duty vehicles and equipment has been fined $85,000 for the death of a mechanic.

Ruggieri Brothers, of Vaughan, Ont., pleaded guilty under provincial health and safety laws.

The worker was killed in May of 2018 while installing a replacement air spring on a dump truck.

The Ministry of Labour says the worker overinflated an airbag with compressed air and the plastic base exploded.

The man was killed by the shrapnel.

Evidence indicated that Ruggieri Brothers failed to ensure he was a licensed mechanic or registered apprentice.