Sunrise Propane has been convicted of violating environmental regulations in connection with a blast in north Toronto in August 2008 that killed a worker, forced 12-and-a-half thousand from their homes and caused millions in damage.

A second employee escaped the blast which happened during a truck-to-truck propane transfer.

A responding firefighter died of a heart attack.

The company and its two directors have been found guilty of nine provincial-offences charges in the class-action suit.

The court found Sunrise failed to provide safety training and a safe working environment, discharged a contaminant and contravened a number of provincial orders related to the cleanup after the August 10 blast.The company was cleared on one count of failing to comply with a provincial order.

Sunrise and its directors could face millions in fines at sentencing.