Armed Catalan Mossos d'Esquadra officers stand guard a day after a van crashed into pedestrians at Las Ramblas in Barcelona - REUTERS
MADRID - 18 August 2017: Catalan police announced on Friday that a fourth person was arrested in connection with the attacks in Barcelona and the resort of Cambrils that killed at least 14 people, ABC news reported.
Police made the announcement on Twitter without providing further details.
Thursday's van attack in Barcelona killed at least 13 people.
In a separate attack, one woman was killed early Friday in Cambrils when a car plowed into pedestrians there.