Spain's Constitutional Court ordered the suspension with immediate effect of the Monday, October 9 session of the Catalan Parliament during which it is expected separatist MPs and the pro-independence Speaker, Carme Forcadell, will attempt to declare independence from Spain.

The session has a "special constitutional transcendence", said the twelve justices, and the matter is of "relevant social and economic repercussion", as well as having "general political consequences".

It declared any attempt, event, resolution or agreement to contravene the suspension "radically void" and ordered—as on previous occasions—tha the Speaker of the Catalan Parliament be notified in person, along with the other seven members of the Speaker's Committee.

They are all warned they have a duty to stop "any initiative that means ignoring or eluding the suspension", no pain of future criminal prosecution should they not do so.

The Socialist Party in Catalonia (PSC) had presented a plea for protection before the court this morning, one day after the Catalan Parliament agreed to hold a session on Monday at which Catalan First Minister Carles Pugidemont would appear to "evaluate the results" of the vote last Sunday.

That process, according to the two regional laws—also suspended by the Constitutional Court in September–used by separatists to justify their actions over the past few weeks, would lead to a declaration of independence from Spain on Monday.

Separatist parties hold a slim majority and govern in the region thanks to the radical-left CUP.

During the committee meetings to set the date and time of Monday's session in the regional parliament, the chamber's senior legal adviser and secretary general advised the Speaker and the members of the committees that to declare independence would be illegal.

The Speaker's Committee called the session anyway.

After the Constitutional Court's new order was published on Thursday, Mrs. Forcadell tweeted defiantly: "Suspending sessions that haven't been called is the new offer of dialogue".

She was referring to a technicality that plays on timings in the chamber on Monday. The first item of business will be regional MPs voting on whether or not to allow Mr. Puidgemont to speak about the results.