Between 16 and 25 November 2020, law enforcement authorities in the EU were able to seize, among others, 37 million illegal cigarettes, over 1.8 tons of tobacco and more than 3.5 thousand litres of illegal fuel. The seizures were carried out in the framework of the Joint Action Day “Arktos 2”, which was coordinated by Frontex and the Finnish and Latvian authorities at selected border crossing points at EU’s eastern land borders. The operation targeted excise fraud, particularly tobacco smuggling, document fraud and migrant smuggling. It was supported by OLAF, Eurojust, Europol, and Interpol and involved border guards, police and customs authorities from six EU Member States (Poland, Estonia, Finland, Latvia, Lithuania, and Slovakia). OLAF supported the operation by facilitating the exchange of information between the customs authorities involved and by lending investigative expertise. The operation was also designed to test the cooperation between different authorities involved in the fight against transnational crime under the EU’s EMPACT platform.