A large-scale international operation targeting cross-border criminal networks has led to the seizure of hundreds of firearms and significant quantities of drugs across Southeast Europe, the European Border and Coast Guard Agency said.
The operation, coordinated by Spain and supported by , took place between March 23 and 27 and involved law enforcement authorities from European Union member states, partner countries and international organizations.
Authorities said the coordinated effort focused on combating illicit firearms trafficking, drug smuggling and other forms of organised cross-border crime, including the use of increasingly sophisticated concealment methods.
Major seizures and arrests
According to Frontex, the joint action days resulted in:
- 460 firearms seized
- More than 19,000 rounds of ammunition confiscated
- Over 21 kilograms of explosives detected
- More than one tonne of cocaine intercepted
- Over 430 kilograms of heroin seized
- Additional quantities of cannabis, amphetamines and synthetic drugs
- 904 people arrested
- 540 refusals of entry issued
Regional cooperation
Frontex deployed officers across multiple locations, including Albania, Bulgaria, Slovakia and Greece, where they supported border checks, surveillance and targeted controls.
Officers also assisted national authorities in identifying high-risk movements and detecting illicit goods transported across borders, including at key transit points such as the port of Patras.
A specialised operational workshop in Bulgaria, coordinated with international partners including INTERPOL, Europol and national law enforcement agencies, focused on detecting advanced concealment techniques used in trafficking.
Broad international participation
The operation brought together a wide range of EU countries, including Germany, France, Italy, Austria and Sweden, alongside regional partners such as Albania, Serbia, North Macedonia, Kosovo and Ukraine.
Officials said the coordinated approach highlights the importance of international cooperation in tackling organised crime networks operating across borders.
Strengthening border security
Frontex said joint operations of this kind help strengthen security at the EU’s external borders by disrupting criminal networks, improving information sharing and enhancing coordination among law enforcement authorities.
The agency added that such actions are essential in addressing complex security threats that extend beyond national jurisdictions.


