Barcelona, Spain (CNN) Catalonia’s disputed independence referendum rapidly descended into chaos on Sunday as Spanish national police raided polling stations and clashed with voters.

Barcelona’s deputy mayor said police fired rubber bullets at people as they attempted to vote in the referendum, which Spain’s top court has declared illegal.
Catalan President Carles Puigdemont condemned “indiscriminate aggression” against people attempting to vote peacefully. Regional authorities said 38 people were treated by emergency services by mid-morning.
More: CNN