Serbia's security agency advises Vucic not to travel to EU summit in Montenegro - Headlines news and analysis from Global Banking & Finance Review
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Serbia's security agency advises Vucic not to travel to EU summit in Montenegro

Published by Global Banking & Finance Review

Posted on June 4, 2026

2 min read

· Last updated: June 4, 2026

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Serbia Warns President Vucic About Security Risks at EU-Balkan Summit in Montenegro

Security Concerns and Diplomatic Tensions Surrounding the EU-Balkan Summit

Serbia's Security Agency Issues Warning

BELGRADE, June 4 (Reuters) - Serbia's security agency warned President Aleksandar Vucic not to travel to Montenegro on Friday for a summit with European Union and Balkan leaders, citing security threats amid a diplomatic tit-for-tat between the two countries.

Key European Leaders to Attend Summit

French President Emmanuel Macron, German Chancellor Friedrich Merz, and head of the European Commission Ursula von der Leyen are due to arrive in the coastal town of Tivat on Friday to meet leaders of the six Western Balkan countries and discuss progress towards EU membership. 

Details of the Security Threat

Statement from Serbia's Security and Information Agency

Serbia's Security and Information Agency (BIA) said in a statement late on Wednesday that a trip to Montenegro is a high security risk for Vucic due to "hostile activities of foreign secret services and a presence of a criminal clan there."

President Vucic's Response

Speaker of the Parliament Ana Brnabic said Vucic planned to travel to Tivat despite the warning and that he would have some important meetings there.

Incidents Heightening Tensions

Montenegro Turns Back Serbian Plane

The warning came after media in the capital Podgorica reported that Montenegro on Wednesday turned back a plane with 87 men from Serbia that landed in Tivat, saying they represented a security threat ahead of the EU-Western Balkan Summit.

Police Seize Buses Intended for Group

The Vijesti news portal said police had seized two buses that were supposed to transport the group. 

Background: Serbia-Montenegro Relations

Strained Diplomatic Ties

Relations between Serbia and Montenegro have been strained over Podgorica's ties with Kosovo, which Serbia does not recognise, and Belgrade's influence over domestic political issues through church and political parties affiliated with Vucic's Serbian Progressive Party. 

Montenegro's Alignment with the EU

NATO member Montenegro gained independence in 2006 following dissolution of its union with Serbia, and unlike Belgrade it had introduced sanctions against Russia, aligning its foreign policy with the European Union.

Border Control Measures

On Wednesday evening Serbia introduced a stricter control of its border to Montenegro, which created long lines at crossings, Serbian N1 TV reported. 

(Reporting by Ivana Sekularac; Editing by Sonali Paul)

Key Takeaways

  • BIA cited presence of the Kavač clan head Radoje Zvicer and ‘hostile actions of foreign services’ as reasons to advise against Vučić’s travel to Tivat, Montenegro (6/3/2026)
  • Montenegro barred 87 Serbian men from entering via a charter flight ahead of the summit, deeming them a security threat; two buses meant to transport them were seized (6/3/2026)
  • Despite the warning, Serbian Parliament Speaker Ana Brnabić confirmed Vučić remains intent on attending, scheduling important high‑level meetings at the summit

Frequently Asked Questions

Why did Serbia's security agency warn President Vucic not to travel to Montenegro?
Serbia's security agency cited security threats including hostile foreign secret services and the presence of a criminal clan as reasons for advising President Vucic not to attend the EU summit in Montenegro.
Who is attending the EU-Western Balkan Summit in Tivat?
French President Emmanuel Macron, German Chancellor Friedrich Merz, and European Commission President Ursula von der Leyen are attending alongside leaders from six Western Balkan countries.
What recent incident heightened tensions between Serbia and Montenegro?
Montenegro turned back a plane carrying 87 men from Serbia, claiming they represented a security threat ahead of the summit.
How have relations between Serbia and Montenegro been strained?
Tensions stem from Montenegro's ties with Kosovo and alignment with EU policy, including sanctions against Russia, as well as Serbia's influence in Montenegrin domestic politics.
What action did Serbia take at its border with Montenegro after the incident?
Serbia introduced stricter border controls, resulting in long lines at crossing points with Montenegro.

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