Barcelona has been put on lockdown as Catalan police attempt to capture separatist leader Carles Puigdemont.
Puigdemont returned to the city on Thursday despite facing arrest to make a speech in front of thousands and quickly vanishing.
Supporters formed a human barrier around the leader, who has been wanted by Spanish authorities for seven years.
Clashes broke out between protesters and police, with members of the crowd teargassed and beaten by officers attempting to control the chaos.
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