Former Belgian international Radja Nainggolan was arrested on Monday as part of an investigation into cocaine trafficking through the port of Antwerp, the Brussels prosecutor’s office confirmed.

Authorities conducted multiple raids across the country, leading to the arrest of several suspects, including Nainggolan. Prosecutors revealed that the investigation focuses on the importation of cocaine from South America to Europe via the port of Antwerp and its distribution within Belgium. Further details were not disclosed.

Nainggolan, 36, who hails from Antwerp, recently came out of retirement to join a lower-division Belgian club, extending a career that included 30 national team appearances and six goals. The midfielder, known for his time at clubs like Roma, Inter Milan, and Cagliari, had been without a team since last summer before signing with second-tier Belgian side Lokeren last week. He made an immediate impact, scoring in his debut during a 1-1 draw against K. Lierse.

Previously, Nainggolan returned to Belgium in 2021 to play for Royal Antwerp after leaving Italy. His stint at Antwerp ended in early 2023 following several controversies, including a suspension for smoking an e-cigarette on the bench. Known as a talented yet unconventional player, Nainggolan’s career has been as notable for his performances on the pitch as for his off-field antics.