However, he said that he is willing to collaborate with the next Catalan government, but only "within the law."

Rajoy's center-right government had repeatedly blocked the Catalan referendum on secession in court, adding that plans for independence are "nonsense."

"There are many things that can be discussed. But while I am the president of the government, I will not discuss the unity of Spain, the national sovereignty or the freedom of all Spaniards," Rajoy said on Monday after pro-independence parties claimed victory in the Sunday regional parliamentary elections.

The Spanish constitution does not allow for regions to break away, but the Spanish prime minister says he is still willing to open dialogue with the new Catalan government, where separatist parties hold a majority.

"I am ready to listen but I am not ready to get rid of the law," Rajoy, who faces national elections in three months, stated.

However, for Catalans, the vote, which saw a turnout of 78 percent, showed that the majority are in favor of parties which push for Catalonia to go it alone.