At least 128 people were arrested in Barcelona after a youth protest turned violent, with demonstrators clashing with police and attacking businesses. Catalan police chief Silvia Cata said 73 of those arrested were minors, with their cases referred to the juvenile prosecutor’s office. Fifteen police officers were injured during the unrest, which began late Saturday afternoon around Plaça de Catalunya in the city centre. Spanish media reports said the gathering drew about 600 people and was promoted on social media under the slogan “Instituts Indignats”, aiming to bring the French youth movement “Lycéens Indignés” to Barcelona. Footage shared online showed groups setting objects on fire, attacking businesses and taking goods from shops. Police said protesters also threw stones and other heavy objects, erected barricades, set rubbish bins on fire and smashed shop windows. Police moved in to disperse the demonstrators, triggering clashes in nearby streets. La Vanguardia reported about 14 shops were looted. Motorbikes, bicycles and bus shelters were also damaged. Several businesses closed, and authorities restricted access to Plaça de Catalunya. Train services stopping at the square’s station were temporarily suspended. Cata said only two of those arrested had previous criminal records. She described the violence as “gratuitous violence”, adding that the rally was “completely disorganised” and that police were examining the profiles of the detainees. Barcelona mayor Jaume Collboni condemned the violence and said the city council would join legal proceedings to seek accountability for the damage, warning that parents or legal guardians of minors could face consequences. Catalonia’s president of the government, Salvador Illa, said protesting is a democratic right but violence could not be justified. Interior minister Núria Parlon called the incidents “gratuitous violence and vandalism” and said those responsible were not defending a legitimate cause.