some minutes later, òmnium cultural and anc called for a mobilization to avoid demonstrators being prosecuted given that spanish citizen's security law sets very high penalties for unauthorized demonstrations. civil pro-independence organizations called for "peaceful resistance" in front of some of the buildings being searched. the mayor of barcelona ada colau also called all citizens to take the streets in protest for the raids. soon after people started gathering in front of the economy department, crowds forced the closure of the gran via. according to several sources, at some moment there were more than 40,000 people in the demonstration in front of the catalan economy department. in the afternoon, various volunteers offered food and water to demonstrators. several concerts were held in the junction between rambla de catalunya and gran via, like companyia elèctrica dharma and judit neddermann as well as "castells".