The Constitutional Court of Spain ordered the suspension of a Catalan parliamentary session to be held on Oct. 9 for the region's declaration of independence, Agence France-Presse reported.
The court suspended the planned session as it hears an appeal by rival politicians of Catalan separatist leaders, a spokeswoman for the court said.
Catalan Parliament leaders who ignore the suspension order could face criminal action, the court warned, and that any session held in violation of the order would be considered invalid.
Meanwhile, some separatists are considering whether to postpone Catalonia's declaration of independence to create room for a negotiated settlement with Spain, Bloomberg News reported, citing two people familiar with the plans.
The report said leaders of the independence movement are divided over their next step, with the main group headed by Catalan regional leader Carles Puigdemont concerned that unilaterally declaring independence from Spain would have an immediate negative impact on Catalonia's economy.