Firefighters continued working Wednesday to subdue a wildfire that had spread to over 1,300 open acres in the rural southeastern reaches of San Diego County, threatening back-country neighborhoods and cultural relics while forcing hundreds of people from their homes. As of Wednesday morning, the fire was 50% contained according to Cal Fire. For more updates on containment of this fire, visit the Cal Fire Incident page: McCain Fire. The blaze erupted at about 3:30 p.m. Monday when a car overturned and caught fire on Interstate 8 near McCain Valley Road in Boulevard, north of Jacumba Hot Springs, according to Cal Fire. MORE: https://www.cbs8.com/article/news/local/wildfire/fire-crews-battle-brush-fire-boulevard/509-9dbba17b-8ded-4908-9031-885f282daadb