Five Iran-linked oil tankers bound for Malaysia have reportedly reversed course amid the risk of interception by the United States Navy, highlighting escalating tensions in major global shipping lanes.

According to open-source maritime tracking data and reporting, the vessels altered their routes after the US announced that ships transporting Iranian oil could face interception in international waters.

Among the vessels affected was the Iran-flagged tanker Kariz, which was carrying approximately one million barrels of crude oil and changed course near Sri Lanka. Another large tanker, Andromeda, reportedly loaded with nearly two million barrels, also diverted its route while sailing through the Indian Ocean.

In addition, two empty crude carriers, Amak and Elisabet, turned back in the Gulf of Oman as they approached areas with a visible US naval presence near the Strait of Hormuz. These vessels are reported to be under US and European sanctions.

The developments come amid a broader US naval blockade targeting Iranian oil exports, which was imposed in April 2026 following stalled diplomatic talks. The blockade is part of ongoing efforts to restrict Iran’s oil trade during the conflict, significantly impacting maritime traffic and global energy flows.

The Strait of Hormuz, a critical route for global oil shipments, has seen major disruptions since the escalation of hostilities. Shipping traffic has declined sharply, with several vessels either rerouting or halting operations due to security concerns and uncertainty over safe passage.

The diversion of tankers underscores the growing impact of military activity on commercial shipping, as operators weigh risks associated with sanctions enforcement and naval interception.

As tensions continue, maritime activity in the region remains volatile, with further developments expected to influence global energy markets and shipping operations.