FORT ST. JOHN -- A structure fire at a Canfor mill in Fort St. John prompted a large response from firefighters.

The Charlie Lake Fire Department dispatched crews to the mill located on 259 Road at 10:54 p.m. Tuesday night.

The Peace River Regional District said that 11 firefighters worked through the night to extinguish the fire that took six and a half hours to put out.

The Fort St. John fire department confirming that none of their crews were sent for further assistance.

An investigation by the Fire Chief and a representative from WorkSafeBC was conducted on Wednesday.

It determined the cause of the fire to be an electrical short that damaged walls and an electrical panel, with no impact to equipment.

Production at the sawmill will continue Friday when repairs to the structure are set to be complete.

The planer mill and pellet plant were not affected and continue to operate.

No injuries were reported in the fire.