The European Parliament on Friday cancelled an event that was to be attended by Catalan separatist leader Carles Puigdemont, citing "security threats".
"There is a high risk that the proposed event could pose a threat to the maintenance of public order on Parliament's premises," the speaker's office said.
Puigdemont has been living in self-imposed exile in Belgium since Spain cracked down on his efforts to lead the Catalonia region to independence via a referendum.
He had been due to meet reporters on Monday in the European Parliament at an event hosted by the Belgian MEP Ralph Packet.
But his presence was furiously opposed by Spanish lawmakers, who regard his secession bid as illegal, and the assembly president ordered a security review.
The review noted increased tensions surrounding the ongoing trial of several of Puigdemont's Catalan colleagues who have been charged in Spain with "rebellion".
And earlier this month, pro-independence protesters temporarily occupied EU buildings in Barcelona.
"The analysis has concluded that the security threats linked to the event cannot be mitigated by Parliament security services," the statement said.
Puigdemont accused the parliament's president Antonio Trajani of bending to pressure from the "authoritarian drift of Spanish democracy" and vowed to hold his meeting elsewhere.
"Europe is losing democratic credibility," he complained. Meanwhile, Spanish conservative MEP Gonzalez Pons welcomed the decision.
"The European Parliament has acted responsibly by suspending the act of the escaped coup plotter, Puigdemont," he said, in a tweet.
"After the independentistas took over the headquarters of the European institutions 15 days ago in Barcelona, it was necessary to prevent them repeating the aggression."
Disclaimer: No Business Standard Journalist was involved in creation of this content