Spanish police are ready to arrest Catalan President Carles Puigdemont immediately if he declares independence in the regional parliament, according to two people familiar with the government’s plans.

While a final decision on whether to act has not yet been taken, Spain’s National Police force has elite officers deployed in Catalonia who are prepared to join a raid if Catalan police try to shield Mr Puigdemont, said one of the people. If Mr Puigdemont makes a statement that falls short of immediate independence, the government in Madrid may stay its hand.

The President is likely to use the words “declaration of independence,” but they will probably be qualified or hedged in some way, according to another person familiar with his plans. The Catalan government spokesman declined to comment on Mr Puigdemont’s speech at a press briefing in Barcelona on Tuesday.

Mr Puigdemont is due to address the regional legislature at 6pm with many of his supporters looking for him to announce a new republic to follow through on the makeshift referendum held on Oct. 1. With his core supporters demanding he make good on the illegal vote for independence and officials in Madrid urging Prime Minister Mariano Rajoy to finally crack down on the separatist campaign, Mr Puigdemont’s rebellion may be running out of road.

Mr Rajoy has insisted all along that he’ll use only proportionate force in relation to the separatist government in Barcelona. Even so, prosecutors have been exploring charges of sedition against other separatist leaders including Jordi Sanchez, head of the biggest pro-independence campaign group. Sedition carries a jail term of up to 15 years.

The National Police and the Civil Guard have sufficient officers in place to overcome any resistance they might meet, according to one of the people familiar with the government’s preparations. Both people asked not to be named discussing confidential plans.

Catalonia independence referendum: Riot police clash with voters Show all 17 1 /17 Catalonia independence referendum: Riot police clash with voters Catalonia independence referendum: Riot police clash with voters A man faces off Spanish Civil Guards outside a polling station in Sant Julia de Ramis Reuters Catalonia independence referendum: Riot police clash with voters Riot police form a security cordon around the Ramon Llull school in Barcelona EPA Catalonia independence referendum: Riot police clash with voters Riot police evict a young woman during clashes between people gathered outside the Ramon Llull school in Barcelona EPA Catalonia independence referendum: Riot police clash with voters Spanish Civil Guard officers break through a door at a polling station in Sant Julia de Ramis Reuters Catalonia independence referendum: Riot police clash with voters Spanish National Police clash with pro-referendum supporters in Barcelona on Sunday AP Catalonia independence referendum: Riot police clash with voters Crowds raise their arms up as police move in on members of the public gathered outside to prevent them from voting in the referendum at a polling station where the President Carles Puigdemunt will vote later today Getty Catalonia independence referendum: Riot police clash with voters People confront Spanish Civil Guard officers outside a polling station Reuters Catalonia independence referendum: Riot police clash with voters Three man hold each other as they try to block a Spanish police van from approaching a polling station AP Catalonia independence referendum: Riot police clash with voters A woman shows a ballot to a Spanish Civil Guard officer outside a polling station Reuters Catalonia independence referendum: Riot police clash with voters A man wearing a shirt with an Estelada (Catalan separatist flag) and holding carnations faces off with a Spanish Civil Guard officer Reuters Catalonia independence referendum: Riot police clash with voters Police try to control the area as people attempt to cast their ballot at a polling station in Barcelona Getty Catalonia independence referendum: Riot police clash with voters A man is grabbed by officers as police move in on the crowds Catalonia independence referendum: Riot police clash with voters Two women argue with a Spanish National policeman during clashes between Catalan pro-independence people and police forces at the Sant Julia de Ramis sports centre in Girona EPA Catalonia independence referendum: Riot police clash with voters Sant Julia De Ramis in Spain Getty Catalonia independence referendum: Riot police clash with voters Confrontation outside a polling station in Barcelona, where police have tried to stop people voting AFP/Getty Images Catalonia independence referendum: Riot police clash with voters A Spanish National Police officer aims a rubber-bullet rifle at pro-referendum supporters in Barcelona AP Catalonia independence referendum: Riot police clash with voters Riot police clashed with voters as polls opened in Barcelona Sky News

A government press officer declined to comment other than to say that any such decision would have to be ordered by a judge.

The uncertainty hanging over Spain has hit government bonds and stocks. The benchmark IBEX stock index was down 1.1 percent as of 1:30 p.m. in Madrid.

Rajoy has vowed to use all the legal means at his disposal to prevent Catalonia seceding after Mr Puigdemont’s government defied a series of Constitutional Court rulings to go ahead with the referendum. Catalan police ignored orders to seize ballot boxes ahead of the vote. The Spanish government has stationed thousands of National Police in cruise ships in the Port of Barcelona.

Carles Puigdemont (Getty)

Albert Rivera, leader of the centrist Ciudadanos party that has supported Mr Rajoy’s stance on Catalonia, said it’s time to stop using euphemisms. Any declaration of independence by Mr Puigdemont - “whether it’s all in cash or paid out over time” - is “an attack on democracy and you have to respond,” he said at briefing Tuesday, Efe news wire reported.