>> Crowds running in terror from Barcelona's Las Ramblas on Thursday after a suspected Islamist militant plowed a van through pedestrians walking along the city's most famous avenue. At least 13 people were killed, and over 100 injured. Footage from witnesses catching the moments directly afterwards. A manhunt's underway for the van's driver, who's believed to have escaped the scene on foot.
Islamic State quickly claimed responsibility as Spain launched a sweeping anti-terrorism operation. Hours later, as security forces hunted the van's driver, police say they thwarted a separate attack in the nearby town of Cambrils. Six civilians and a police officer were injured when they were run over by a car with one of the injured later dying.
Police shot the five assailants dead. The attackers were wearing explosive belts which were later determined to be fake. Details are still sketchy, but police say that this group was linked to the Barcelona attack. A judicial source says investigators believe a cell of at least 8 people, possibly 12, may have been involved in the two incidents.
They come after a person was killed in an explosion on Wednesday in a house in another town in the region. No confirmation yet that the blast was connected to the later incidents. In all, four men have been arrested in the aftermath of the attacks, including a Moroccan and a man from Spain's North African enclave of Melilla.
The crowds already returning to Las Ramblas on Friday.>> My family are in an apartment nearby and they wanted me to come out and see what the mood was, and see how people are feeling. And it looks like a city that's recovering from a deep shock.>> The aftermath being felt across the world with the injured and dead coming from at least 34 different countries.
Authorities say the death toll could still rise.