A fourth person has been arrested over a series of suspected terror attacks that killed 14 people and injured 130 in Spain, ABC News quoted authorities as saying on Friday.
Police shot dead five would-be attackers after confronting them early on Friday in Cambrils, a town south of Barcelona where hours earlier a suspected attacker drove a van into crowds.
Earlier, police were continuing an urgent manhunt for the driver of the van that ploughed into crowds, on the popular Las Ramblas tourist strip.
It was unclear whether the man arrested was the driver of the van.
Las Ramblas was reopened the morning after the attack, though a police presence and security tape was still visible in some places.
Thirteen people were killed in the attack at Las Ramblas, and a 14th died from injuries suffered from a related attack at Cambrils.