His words are likely to bolster the central Governments case that the Catalan separatists have gone too far - and may signal new get-tough measures by Madrid against the Barcelona rebellion.
Trade unions in Catalonia led a powerful general strike that shut down businesses, highways and schools in a mass protest against police violence during the regions chaotic independence vote. Huge crowds poured through the streets of Barcelona.
Demonstrators said they were appalled by images of Spains national police and civil guard, sent to shut down the referendum, beating voters with rubber batons and dragging them away from ballot boxes. The marchers chanted, Occupying forces get out!
The raw emotions - and the stark divisions between the separatists and those who want to keep Spain united - are only growing. Paula Miranda, a university student, said: I felt lots of impotence and rage. I was not expecting this.