A man was injured in a fire in a rural part of San Diego County Sunday, where a fully-engulfed motor home had burned up at least half of an acre.
Units were dispatched at around 7:35 a.m. Sunday to 25484 Potrero Valley Rd. near the intersection of Potrero Circle in Potrero, according to Cal Fire San Diego.
The blaze was fully contained in just over one hour, fire officials said…