the south carolina sky, sparking a difficult firefight. >> there are several fire calls you can point to and say, these are once in a lifetime. and this clearly is a once in a lifetime call. >> reporter: rockets of all kinds going off in every direction, as crews battled the blaze. it took 45 minutes to knock it down. >> you couldn't really stand around, because there was so much smoke in the air from the fireworks. >> reporter: the containers were near charlotte. investigators tonight are working to determine what caused the blast. thankfully, nobody was hurt. that wasn't the case last month when 12 firefighters in roswell, new mexico, were injured, two severely burned, when the fireworks they were packaging for their annual display exploded. fire officials pointed to the recent dry weather in south carolina, but there's still no official word on what sparked this morning's fire. cecilia? >> okay, victor, thank you. next, to the hunt for two gunmen who turned a shopping mall into a war zone. police in san bruno, california, releasing new surveillance video showing people running for their lives. the shooting just keeps going. s.w.a.t. teams rushed to the