Two tankers were briefly detained off Penang last week after Malaysian authorities intercepted what they say was an illegal ship‑to‑ship (STS) transfer of crude in waters long notorious as a hotspot for shadow fleet activity. The Malaysian Maritime Enforcement Agency (MMEA) said a patrol vessel found two tankers about 24 nautical miles west of Muka Head, Penang anchored in close proximity and suspected of transferring oil. The agency detained both vessels briefly. TankerTrackers.com, the open‑source monitor of the shadow fleet, noted the detentions were short‑lived: one tanker is now empty and routing back to Iran while the other, laden, appears bound for China. TankerTrackers.com flagged the common tricks – bogus flags and opaque ship identities – that let vessels slip through regulatory nets even after interdiction. Malaysia’s waters have for years been a favoured lane for clandestine STS transfers, used to mask cargo origins and dodge sanctions. The patchwork of flags, shell companies and brief rendezvous offshore create fertile ground for illicit transfers. Kuala Lumpur has recognised the problem. In July last year, officials signalled a tougher posture, promising tighter enforcement and new scrutiny on STS activity and sanctions evasion in its maritime zones. googletag.cmd.push(function() { googletag.display('div-gpt-ad-1_95_0_1_2'); }); TagsMalaysia