Hundreds of people are under a mandatory evacuation order from Mission Valley following a devastating blaze in San Diego - as dozens of emergency services battle to put out the flames . According to local reports, a hillside brush fire near Avenida De Las Tiendas in Mission Valley is prompting some evacuations in the immediate area. Dozens of firefighters are on the scene battling the flames and air support has been called in to help stop the spread. Smoke can be seen billowing from the