Jakarta - Indonesian government on Tuesday, 5 May 2026 said it has been analyzing the legalization of the passing of foreign vessels, including from Iran, through its national waters based on the international maritime law UNCLOS 1982.

On Monday, 4 May 2026 morning, a maritime intelligence agency Tankertrackers detected an Iranian cargo ship DERYA entering Indonesian waters at Lombok Strait.

The agency said about 24 hours before tanker DERYA entering Lombok Strait in West Nusa Tenggara, an Iranian supertanker NITC VLCC also passing Indonesia's national waters through the same point.

"Right now, a second such tanker named DERYA (9569700) is doing the same. She attempted to deliver 1.88 million barrels to India in mid-April during the sanctions waiver window but that didn't work out," Tankertrackers said in its X account on Monday.

Tanker DERYA was spotted heading toward Indonesia's Riau Islands.

It is likely that the two Iran flag vessels entered Indonesia's waters after being redirected back to Iran by the U.S. Navy.

Indonesian Foreign Ministry in a statement on Tuesday, 5 May 2026 said the government of Indonesia is aware of the information, saying that Indonesia like other countries is honoring and respecting international maritime law UNCLOS 1982 for all kind of maritime passages.

"The Indonesian government has been verifying and internally coordinating and view that those shops did its passage rights in accordance with the international law," Indonesian Foreign Ministry's First Spokesperson Yvonne Mewengkang said in a written statement on Tuesday, 5 May 2026.***