A section of Interstate 77 in West Virginia will remain closed for two days, after the roadway was damaged by a fire that also engulfed at least five homes.

An explosion in a natural gas line caused the hour-long inferno along the interstate Tuesday in Sissonville.

No injuries have been reported, but firefighters were kept away from the homes until late afternoon by the intense flames.

A county official says flames were shooting 50 to 75 feet into the air.

Police say there was a slight risk of a secondary explosion, but people were told to stay inside their homes rather than evacuate.