Valley City  (CSi)  Valley City Firefighters were called back Sunday, to the scene of a Saturday mobile home fire at 757 Viking Drive.

The Initial fire call came in Saturday about 10:15-p.m, and the fire caused extensive damage.

No injuries were reported.

Then on Sunday, around 6:40-a.m., city firefighters were called again to the structure, to extinguish  hot spots.  The cause of the fire is under investigation.