Separatist Quim Torra will be forced to step down after he was found guilty of disobeying a court.
Read moreCatalonia
Video content
Video caption: Footage of Spanish factory fire and its aftermath A large explosion at a chemical factory in Spain's Catalonia region has left two people dead.
Video content
Video caption: Spain explosion: CCTV footage of Tarragona chemical plant blast The blast that killed at least one person at a chemical plant in Tarragona was captured on CCTV.
Video content
Video caption: Fire rages at Spain's chemical factory Residents of the north-eastern city of Tarragona and nearby locations are being urged to stay indoors.
Video content
Video caption: El Clásico: Catalan protests at Barcelona v Real Madrid match Why protesters and police clashed outside one of Europe's most watched football games, "El Clásico".
Video content
Video caption: El Clásico: Catalan protests after Barcelona and Real Madrid football match Protesters have clashed with police outside a Barcelona and Real Madrid football match at Nou Camp in Spain.
By Paul Rincon
Science editor, BBC News website