Barcelona timeline: As it happened, the latest events and what we know so far
- Spanish media report driver among those dead
- Two Italians and one American among victims
- Police reveal terrorists planned 'bigger' attacks
- Family of four from the Philippines with Irish citizenship 'injured'
- Police arrest fourth person in relation to attacks on Friday afternoon
As more details of the terrorist attack in Barcelona emerge, here is a timeline of the events as they unfolded.
One person is killed in an explosion in Alcanar, which authorities believe is linked to the Barcelona van attack.
5pm - A white Fiat van speeds through Las Ramblas, a busy street in Barcelona. At least 13 people are killed and more than 100 others injured as the driver ploughs into the crowds along a 500m stretch of the pedestrianised area. The driver then flees, leaving a scene of widespread panic, with people running in waves away from the area.
7pm - In a tweet before 7pm, Catalonia's police force says the protocol for terrorist attacks has been activated.
8pm - Two men are arrested in connection with the incident. One is named as Driss Oukabir, a 28-year-old Moroccan who is believed to have rented the van.
8.40pm - The Islamic State terror group claims responsibility for the attack.
1am - Seven people are reported injured when a group, said to be wearing fake explosive belts, launch a vehicle attack in the coastal town of Cambrils, similar to the one in Barcelona. Footage posted on social media, which appears to have been filmed on the town's beachfront promenade, shows bystanders running for cover and several gunshots are heard. Spanish police shoot four suspected terrorists dead and injure another.
3am - Police say the fifth suspect has died.
8am - Spanish police arrest a third person in Ripoll, and tweet that the belts worn by the five men shot dead in Cambrils were "simulated explosives".
11.30am - Catalonian authorities say a woman who was critically injured in the Cambrils attack has died. At around the same time, the Foreign Office says a "small number" of Brits were injured in the attacks.
1pm - police say a fourth suspect had been arrested.
1.30pm - US Secretary of State confirms an American citizen is among those killed.
2pm - Buckingham Palace says The Queen had sent a message of sympathy to the King of Spain.
5.30pm - Spanish media report the driver of the van was one of five men shot by police.
8:40pm - Spanish police are looking for four suspects in France linked to the deadly terror attacks in Barcelona and the seaside resort of Cambril