"That is crazy. What is necessary to do is to elect a person, who is in Spain, who is not in prison, who has no problems with justice and respects the law," Spanish Prime Minister Mariano Rajoy told the Telecinco broadcaster.
Earlier this week, Catalan parties announced their plans to establish parallel government structures in Brussels that will be headed by ousted regional President Carles Puigdemont.
Catalan Parliament speaker Roger Torrent said Tuesday that he would propose former Catalan President Carles Puigdemont, who is in self-imposed exile in Belgium, for nomination as a candidate for the position of the head of the Catalan government, the Generalitat.
On October 1, Catalonia held a referendum on the region's independence from Spain. The vast majority of voters backed secession.
The plebiscite was not, however, recognized by Madrid, which subsequently imposed direct rule over the autonomous region and dismissed its government. Several ministers of the former Catalan government were arrested while former President Puigdemont managed to leave Spain for Belgium.
The newly elected Catalan parliament tried to declare Puigdemont a new president of the region but the Spanish authorities banned to swear in him in absentia.