Sept. 23 (UPI) -- Spanish authorities arrested at least nine Catalan separatists Monday, and said they were plotting acts of violence in the Spanish territory.
Civil Guard officers raided homes and businesses and seized explosives, computers and documents, authorities said. Among the items found were sulfuric acid, paraffin, aluminum powder, paint stripper and gasoline. One suspect had floor plans of several public buildings, court officials said. More than 500 officers took part in the early morning raid in the province of Barcelona.