On 1 October 2017, elections were held in Catalonia for Catalan independence.
These are photographs of some of the protests that arose in the wake of the election, especially against the violent conduct of the Spanish police on election day.

On 1 October 2017, elections were held in Catalonia for Catalan independence. In the days leading up to the election, (Catalan) association members had been arrested and their offices searched by the Spanish police. Election day itself developed violently and in the time that followed, Catalan politicians were arrested.
These are photographs of some of the protests that arose in the wake of the election, especially against the violent conduct of the Spanish police on election day.
As the case is complex, you are encouraged to do your own research on the subject.