Barcelona van attack - what we know so far

Two people have been arrested over a deadly van attack in a tourist area of Barcelona and a manhunt continues for the driver. Here's what we know so far:

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• A white Fiat van ploughed into crowds in Las Ramblas, a famous pedestrian area in central Barcelona, on Thursday afternoon local time.
• Officials said 13 people were killed and more than 100 were injured, though those numbers are likely to change further.
• Witnesses said the van zigzagged down the busy tourist avenue, mowing down pedestrians and leaving bodies strewn across the ground.
• People took cover in nearby shops and cafes.
• Police arrested two men - one Moroccan and the other a Spanish national from the North African enclave of Melilla - but neither was the driver of the van.
• A manhunt continued for the driver, who police said left the vehicle on foot and did not appear to be armed.
• Police said that the attack appeared to be linked to an explosion at a house in Alcanar in the early hours of Thursday in which one person died and another was injured.
• Authorities in Vic, a small town outside Barcelona, said another van had been found there in connection with the attack; Spanish media had earlier reported that a second van had been hired as a getaway vehicle.
• Police released a photo of a man named as Driss Oubakir, whose documents were used to rent the van; he told police his papers had been stolen.
• A driver who had knocked down two officers at a checkpoint in Barcelona was shot dead but police later said the incident was not linked to the van attack.
• Spanish Prime Minister Mariano Rajoy said he was en route to Barcelona and would co-ordinate efforts to reinforce security after the attack.
• The vehicle attack took place at the height of the tourist season in Barcelona, which is one of Europe's top travel destinations with at least 11 million visitors a year.
• The New Zealand Embassy in Madrid said 257 New Zealanders registered on SafeTravel as being in Spain but it had had no requests for consular assistance.
• A New South Wales woman was injured and two men from Victoria were caught up in the attack but were back in their hotel, Australian Foreign Minister Julie Bishop said.
• Islamic State claimed responsibility for the attack, the group's Amaq news agency said.
• The attack is the deadliest in Spain since March 2004, when Islamist militants placed bombs on commuter trains in Madrid, killing 191 people and wounding more than 1800.