Gunfire Follows ‘Full Opening’ Claim as IRGC Approaches Tanker　「完全開放」翌日に発砲　IRGCがタンカー接近

UKMTO issues warning on 18 April; incident occurs northeast of Oman, vessel unnamed

UKMTOが18日警告、オマーン北東沖で発生　船名は非公表

The United Kingdom Maritime Trade Operations (UKMTO) said on April 18, 2026 that it had received a report of an incident that occurred approximately 20 nautical miles northeast of Oman.

■The full article covers the following points (approximately 3,000 characters)

→A gunfire incident occurring the day after the “full reopening” declaration, its timeline and the on-site reality

→Approach by IRGC gunboats and the master’s testimony, including the unusual point of gunfire without a VHF challenge

→Radio messages denying passage to merchant vessels and multiple ships turning back, reflecting the actual level of tension in the Strait

→The significance of UKMTO warnings as on-the-ground intelligence and their impact on operational decision-making

→Remarks by Chairman Nagasawa indicating a cautious stance by Japan-related vessels and the conditions for resuming transit

(The remainder of the article can be read in both English and Japanese. The Japanese article follows the English version.)

「完全開放」翌日に発砲　IRGCがタンカー接近

UKMTOが18日警告、オマーン北東沖で発生　船名は非公表

　英国海軍商船運航センター（UKMTO）は2026年4月18日、オマーン北東約20海里の海域で発生した事案の報告を受領したと発表した。

■記事本文では以下の内容を読むことができます（記事全文約3000文字）

→「完全開放」宣言の翌日に発生した発砲事案、その時系列と現場の実態

→IRGCガンボート接近と船長証言、VHFなし発砲という異例のポイント

→商船への通航否認無線と複数船の反転、海峡の実際の緊張状況

→UKMTO警告が示す現場情報の重みと、運航判断への影響

→長澤会長発言に見る、日本関係船の慎重姿勢と通航再開の条件

（続きは英語と日本語で書かれた本文でお読みください。日本語の記事は英文記事に続いて掲載されています）