Police and fire officials are investigating two barn fires in two days in Langley, and both may be linked to marijuana grow operations.

Friday's fire forced the evacuation of several nearby homes after breaking out in a barn that was once a mushroom farm.

Police say an inspection of the property earlier this year found evidence of a previous marijuana grow op in one room of the barn.

Yesterday, another Langley barn was hit by fire and it too had signs of a pot-growing operation inside.