The United States Coast Guard has paused preparations to forcibly board an oil tanker under US sanctions after a Russian tricolour was painted onto the ship’s hull, according to American officials cited by The Wall Street Journal.
The vessel, the Bella 1, is described by US officials as part of a wider “shadow fleet” used to move oil linked to sanctioned regimes and networks. The ship is owned by a Turkish company and was sanctioned by Washington over allegations that it transported Iranian oil for the benefit of groups the United States designates as terrorist organisations, including Hezbollah and Yemen’s Houthis, as well as Iran’s Islamic Revolutionary Guard Corps (IRGC).
According to the WSJ account, Coast Guard cutters have been tracking the very large crude carrier in the Atlantic for more than ten days, remaining roughly half a mile behind. US forces are said to have boarding capability available, including specialised teams, but have been waiting for authorisation from the White House before attempting a seizure.
The standoff has become more complicated after what officials described as a hastily painted Russian flag appeared on the ship’s side. The move is being treated in Washington as an attempt to suggest Russian protection or to change the legal character of any US action. US officials are now seeking clarity on the tanker’s status through diplomatic channels.
Under international maritime law, a ship’s nationality is tied to the state whose flag it is entitled to fly, and flag states exercise jurisdiction over vessels registered to them. The UN Convention on the Law of the Sea provides for a “right of visit” in limited cases, including where a vessel is suspected of being without nationality or of using a flag improperly.
Maritime regulators have also warned in recent years about the problem of fraudulent or unauthorised registration, which can obscure responsibility and complicate enforcement. The International Maritime Organisation has described fraudulent registration as undermining effective jurisdiction and control at sea.
US officials have indicated they initially regarded the Bella 1 as operating under a questionable or false flag and acting in a way that brought it within the scope of a judicial warrant for seizure. The appearance of Russian symbols does not, on its own, confer nationality, but officials and outside experts have warned that if the ship were legally re-registered to Russia, a forcible boarding could trigger a diplomatic dispute.
The case is unfolding amid a broader US pressure campaign aimed at restricting oil exports connected to Venezuela. On 16 December 2025, President Donald Trump announced what he called a “total and complete blockade” of sanctioned oil tankers entering or leaving Venezuela. Reuters reported that the policy has reduced exports, though some shipments have continued despite US patrols.
Reporting in recent days has described US interdictions and attempted boardings in waters near Venezuela, with some tankers complying and others resisting. In the Bella 1 case, earlier accounts said the ship refused to stop when approached by US personnel and manoeuvred away at speed, prompting an extended pursuit rather than a rapid boarding.
Analysts who track sanctions evasion have also documented the use of “flags of convenience” and suspected false-flag practices in the transport of sanctioned oil, particularly from Russia. Such practices can include rapid re-flagging, opaque ownership, and shifting documentation designed to hinder enforcement actions.
For the Trump administration, the Bella 1 episode highlights the operational and legal limits of sanctions enforcement at sea. Even with court orders and boarding capability, officials must weigh the risks of escalation, especially if a targeted vessel attempts to create legal ambiguity through re-registration or symbols.
In the immediate term, US officials appear focused on determining the Bella 1’s current flag status and ownership documentation, and on whether any purported Russian link is formal or staged. Until that is clarified, the decision on whether to proceed with a boarding is likely to remain a White House call, with the Coast Guard continuing to shadow the tanker at sea.
