More than 200 people were arrested in an INTERPOL-led operation targeting networks that facilitate illegal immigration and human trafficking across the Mediterranean and Western Atlantic routes, with Portugal’s Judicial Police (PJ) helping as part of the national coordination. The “Communis Maris” operation ran from October 5 to 8 and involved authorities from 16 countries, with support from international and regional organisations for police, judicial and migration cooperation. Portugal’s PJ said its participation focused on operational coordination on national territory, ensuring links between Portuguese entities and the execution of agreed actions. The PJ worked with the PSP and GNR for air, land and maritime border control, including inspection and monitoring of foreigners’ presence in Portugal. The operation aimed to strengthen police cooperation and improve the ability to detect situations linked to transnational crime through joint, coordinated actions by participating authorities. At national level, Portuguese results included eight arrests linked to maritime drug trafficking logistics support, three arrests for document forgery, 4,827 people checked, 275 flights monitored and 201,294 searches of INTERPOL databases. On the ground, 383 operational officers from the PJ, PSP and GNR took part, alongside three prosecutors. Internationally, 262 suspects were arrested and 41 organised crime groups were identified. Police also identified 109 potential human trafficking victims and detected 1,715 migrants, with more than 378,000 people subjected to checks. The operation has concluded, and the statement reports arrests made and groups identified, with the investigation carried out through the coordinated police and judicial actions described in the initiative.