Catalonia
There are fears the step could spark more protests.
Madrid could theoretically take control of police and finances, as well as calling a snap election.
He insists he does have a mandate to split from Spain though.
King of Spain accuses secessionist leaders of 'irresponsible behavior'.
Spain divided: thousands protest police violence that injured 900 people.
More than 800 people injured as Spain plunged into a constitutional crisis.
'Is that it? Bloody hell, Boris.'
Madrid dismisses 'extraordinary level of violence' claim.
Police have clashed with people while trying to prevent voting.
The Spanish Government is determined to prevent it.