Earlier this week, the BC Wildfire Service said the blaze is believed to be man-made, but had not yet determined how.
There has been speculation the fire could have been started by a train, but RCMP said it was too early to draw conclusions.
Lytton residents were forced to evacuate their village, with many only being given a few minutes’ notice. They have all been out of their homes since June 30.
Hundreds of evacuees see the devastation for the first time on Friday, visiting what remains of the community by bus.
Transport Minister Omar Alghabra ordered most of the area’s trains to stop, as residents returned to the burnt-out community to see the damage.
Alghabra said Canadian National and Canadian Pacific Railways have been ordered to cease operations for 48 hours, except for emergency fire work, maintenance and repairs, on sections of track covering parts of the interior of British Columbia.
He said the goal was the safety of rail operations and public safety.
Raging fires damaged rail lines and delayed shipments in the interior of British Columbia, causing a backlog of deliveries.
Meanwhile, the Transportation Safety Board also sent a team of investigators to the Sparwood area after a fire involving a Canadian Pacific freight train.
With files from Claire Fenton, Monika Gul and Hana Mae Nassar