An unprecedented international operation, involving judicial and law enforcement authorities from 11 countries, has resulted in the arrest of 44 individuals. The arrested individuals were suspected of belonging to a high-risk criminal network considered one of the most dangerous in the European Union. The investigations in eight countries uncovered that several criminal organisations were working together to carry out large-scale poly-criminal activities in and outside the European Union. These include drug trafficking, money laundering and illegal enrichment among others.