Catalonia authorities say a third person has been arrested in connection with the Barcelona van attack that killed at least 13 people.

Catalonia Interior Minister Joaquim Forn told Catalunya Radio on Friday that the suspect was taken into custody in the northern Catalan town of Ripoll.

On Thursday, one of the two suspects detained in the hours after the Las Ramblas attack was arrested in Ripoll and another in Alcanar.

Police said neither of the two people detained Thursday was the driver of the white van that plowed down pedestrians. The driver escaped the scene on foot.