The event that U.S. forces boarded M/T Tifani on April 21, 2026 is supported by the AP-syndicated report 'US forces board a sanctioned oil tanker in the Indian Ocean, the Pentagon says' and is echoed by 'x post 2046586731906871682'. The exact phrasing in the claim, that the U.S. State Department said this, is only directly supported in this run by the secondary report '美国国务院：美国军方登上无国籍、受制裁的油轮M/T TIFANI - BlockBeats'. Because no primary State Department page or transcript was retrieved, the attribution remains less certain than the underlying boarding event. Overall, the claim is likely true in substance, but the State Department attribution is not conclusively verified from a primary source here.