cambrils near terragona, state broadcasters here in spain reporting that four terrorists, as they describe them, have been killed in what they describe as a terror incident. they say five people were taken down. four of them were killed. this, as you rightly point out, is a separate incident, as far as we understand it, to that which happened here this afternoon around 5:00 p.m. local time when this van plowed into pedestrians in what was an incredibly busy las ramblas, pedestrianized street, killing 13 and injuring 100. anderson? >> the barcelona attack, authorities are saying the driver of the van is still at large? >> yeah, correct. the driver of the van abandoned his vehicle. he fled and he's still on the run, according to authorities. now, u.s. sources who have spoken to spanish authorities here suggest that he may have