Barcelona attack: What we know

A driver deliberately rammed a van into pedestrians on one of Barcelona's most popular boulevards on Thursday, killing at least 13 people in what Spanish police called a "terrorist attack".Tom Gueller, who lives on a road next to Las Ramblas said he saw the van speeding along the boulevard.It was just going straight through the middle of the crowds in the middle of the Ramblas," he told BBC radio, referring to the pedestrianised area.