actually telling somebody every step of the way, get the vehicles here, get your target set in this place, those are all things will be finding out in the next few hours, the next few days, but so far, the target set alone is indicative of a being a terrorist attack. this is a heavily traffic area. we've seen this before but people who were remote-controlled or inspired by isis. it's all lining up and unfortunately, it's one of these incidents where people are going to be asking questions like how can we stop this, how can we prevent this? very difficult to prevent a low-tech attack like this we can also be a mass casualty low-tech attack. >> sandra: sky news just tweeted out an update of where we are, what we know at this point. a number of people have been run over after this van hit crowds and the las romblas area in