The death toll from the terror attacks has risen to 14
One of the five terrorists shot dead by officers in Cambrils may have been the driver of the van that killed 13 people in Barcelona, Spanish police say.
The driver fled on foot after running down pedestrians on Las Ramblas.
Police launched a massive manhunt for him, but have since said he could have been killed by police during a second attack around eight hours later in the seaside town Cambrils.
"We are looking for Moussa Oukabir, but for the moment we don't know whether he was the driver of the van," police announced.
In the Cambrils attack, terrorists drove into people, killing one woman and injuring six more.
A shoot-out ensued during which police killed the five attackers - with one police officer killing four of the suspects.
President of the Catalan region Carles Puigdemont told local radio there is at least one "terrorist still out there" and that "we don't have information regarding the capacity to do more harm".
The van used in the Barcelona atrocity is said to be a Fiat that was hired from an address in Santa Perpetua Of the Mogoda, about five miles north of the city.
Islamic State said it was responsible for the Barcelona van attack, according to the Amaq news agency, and Spain's Prime Minister described it as a "jihadist attack".
Hours after the van attack in Barcelona, one woman was killed when the attackers drove a car into people. Several people were also injured.
Catalan authorities say the attacks are linked.
People from at least 34 different countries were injured in the attack – including one Irish family.
The husband and wife are Irish citizens who were originally from the Philippines. They were in the Catalan capital alongside their two Irish-born children.
Some members of the family have received serious injuries – however their condition is not thought to be life-threatening.
On Newstalk Breakfast earlier, Foreign Affairs Minister Simon Coveney described their condition:
"The father and unfortunately the five-year-old boy have quite serious leg injuries," he said.
"The injuries are not life threatening - that is my understanding.
"Our consul in Barcelona will be visiting them today in hospital and they are also getting support from the Filipino consul."
The mother and daughter were not injured.
An Italian man, 35-year-old Bruno Gulotta, a father of two, was the first victim to be named.
He was strolling down the boulevard with his partner and two sons when he was hit by the van, Italian reports said. The rest of the family were uninjured.
Another Italian - Luca Russo - was among the dead and three others were injured, officials in Rome said.
A Belgian woman is also reported to have been among those killed.
French Foreign Minister Jean-Yves Le Drian confirmed 26 French people were injured, including at least 11 seriously.
US Secretary of State Rex Tillerson, meanwhile, confirmed the death of one US citizen:
Islamic State has said it was responsible for the attack, according to the Amaq news agency, Spain's Prime Minister Mariano Rajoy described it as a "jihadist attack."
A statement put out by Amaq said: "The perpetrators of the Barcelona attack are soldiers of the Islamic State and carried out the operation in response to calls for targeting coalition states."
One social media video post showed bodies strewn across the pavement for several hundred metres along the famous street.
Amy McColgan from Letterkenny in Donegal was nearby and says it was a terrifying experience:
“Nobody really knew how to get home, the metros were closed, nobody knew what bus to get, the taxis were all full and all their lights were turned off,” she said.
“So that was a wee bit like, ‘how are we going to get home and is it even safe to be on the street?”
The government of the Spanish region has announced three days of mourning.
The van used in the atrocity is said to be a Fiat that was hired from an address in Santa Perpetua of the Mogoda, about five miles north of the city.
Anyone with concerns for the safety of Irish people in Barcelona can contact the Department of Foreign Affairs in Dublin on +353-1-4082000 or the Irish embassy in Madrid on +34-91-4364093.