Again. We'll track that. But just know there is that delay. Back to you. Thanks a lot, Mike. Well, there are no longer flames at this fire right now. Firefighters are still, however, on the scene of a large fire which destroyed a commercial building over in the East Bay. NBC Bay Area's Bob Redell joins us live from Concord. And Bob, do we have an idea on the cause of this fire yet? Not yet. The Contra Costa County Fire Protection District says they are still investigating or going to be investigating this fire that burned, as you can hear behind me, near Concord. Bart station, you can see firefighters are still out here. They've been out here for well over 12 hours and until about five, ten minutes ago, they were still dumping water on this building. As you mentioned, the fire is out, but they are on the scene to make sure there's nothing in there that is still hot. That could flare back up. This is video from Khan fire overnight. It shows you just how big and dangerous this fire was when the firefighters arrived around 1030 last night. This was a vacant three story commercial building, not far from Concord, Bart. As I mentioned, it is bordered by three streets East Sunset and Clayton and it is, for all intents and purposes, destroyed. According to Khan Fire, who we spoke to earlier. This is video taken by other people who are about a block or two away. Again, it gives you a good sense of just how bad this fire was. Khan fire tells us that they did immediately search the building to make sure no one was inside. Fortunately, they did not find anyone and because the structure was already at least 50% involved and the roof already collapsing, or at least in danger of collapsing, they went into defensive mode, which meant they stayed outside on the street at a safe distance. They poured water on the fire and made sure it didn't spread to other structures. Now, the biggest challenge for this one is, of course, the safety of all that we're fighting. This fire. We had external collapses, we had internal collapses. The roof collapsed inside the building. So just making sure everybody was safe while we controlled what was going on inside the structure. And that's why one reason why you went defensive kind of right off the. Yeah exactly. Khan fire says they had this fire under control within 2 to 3 hours. Again, no one was hurt. There's no evidence that anyone had been squatting inside the building at the time of the fire. Khan fire believes that someone had been slowly renovating this building over the past five years, but not sure if it was currently hooked up for electricity. And I say that as within the past 30 minutes, some PG and E trucks have shown up. Don't know what that means. If that means there was power connected to this building, just not clear. Again, that was part of the investigation. The roads around here are closed and it could be several hours before they reopen because the city needs to come out here, remove the debris, secure the site. And it looks like that's something you could see with a little backhoe that th