KYRA PHILLIPS, CNN ANCHOR: Heavy rains pounded much of Southern California over the weekend, but that's not the worst of it. The runoff has triggered flooding and even the threat of mud slides. For the latest, we turn now to reporter Rick Lozano of CNN affiliate KTTV -- Rick.</s>RICK LOZANO, KTTV REPORTER: Well, Kyra, the job of cleaning up at this high-tech center outside of Los Angeles continue this morning. As you look behind me, you can see the Tekelec company. It's a huge computer building. The lights are still on, the doors are still open, as they have been all night long. Workers have been inside all night long, for the better part of 10 hours now, cleaning up after the roof collapsed here. The problem is the huge hole in the ceiling, 24 feet by 23 feet. Rain collecting on top of the roof for the better part of 10 hours during yesterday's rainstorms, this building not designed to carry that much wait, and the roof simply collapsed, sending all the water into the building below. The problem here is that as crews squeegee out much of that water, other large storm cells passed overhead dumping at least that much more water back into the building. So it's a vicious cycle. It's an ongoing job, one that will continue for at least the rest of this day and perhaps on into the week as more thunderstorm activity is expected here in the Southern California area. Rick Lozano reporting live from Calabasas, California. Kyra, we'll send it back to you in Atlanta.</s>PHILLIPS: All right, thanks a lot, Rick.
Heavy Southern California Rains Trigger Floods, Threat of Mud Slides