Catalonia leader Carles Puigdemont told the press today that ministers in charge of interior matters and education, as well as government spokeswoman Neus Munte had stepped aside.
He did not give a reason for their departure, but Catalonia's executive has recently been embroiled in heated debate over the vote planned for October 1 as Madrid piles pressure on members of the northeastern regional government.
The first major sign of tensions came earlier this month when Jordi Baiget, in charge of business, expressed doubts over whether the referendum could ever take place, given the power of Madrid.
Madrid is fiercely opposed to a referendum, deeming it illegal and a threat to Spain's unity.
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The Constitutional Court has already quashed a resolution approved by Catalonia's parliament calling for the referendum to take place.
It has also warned Catalonia's elected officials that they will face legal consequences if they take any steps towards holding such a vote.
Catalonia's former president Artur Mas was banned from holding office for two years for organising a referendum in 2014. The vote he held was merely symbolic and non-binding.
Civil servants in Catalonia are in a tough situation, struggling to decide whose orders to follow -- those of their Catalan bosses or of the national government in Madrid.
They will be called upon to organise the referendum by carrying out such steps as opening schools to serve as polling stations, or policing the 7.5-million-strong region.
If they disobey orders from their Catalan bosses, they could face disciplinary action but if they obey, they will go against Spanish law and will therefore face sanctions, which could even lead to job losses.
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