Two backyard sheds and a metal container in which ammunition was stored caught fire and exploded Sunday in a Reseda neighborhood, forcing the evacuation of nearby homes, authorities said. The fire and explosion were reported at 8:43 a.m. in the 19200 block of Ingomar Street. It took firefighters about 90 minutes to extinguish the blaze. No injuries were reported. Crews had to douse the flames from about 50 feet away because ammunition continued to go off, said Los Angeles Fire Department spokeswoman D'Lisa Davies. According to arriving firefighters, Davies said, it "sounded like thousands of rounds were going off." Five...