half-mile radius in the area. this is the area where police are urging residents to stay inside. police are waiting until daylight to review the area safely. that is why they are asking people too st stay indoors. the police chief in austin says this explosion is a little bit different from the previous three we have seen here. that is why he continues to urge people all across the city to be very vigilant of what you see in your neighborhoods. it is very possible this device was a device that was activated by someone handling or kicking or someone coming in dock ta in contact with a tri wire. that changes things. we need the community to pay attention to any suspicious device, whether a package or bag or backpack. anything that looks out of place and do not approach it.