A spokesman for United States Central Command told Al Jazeera that a US blockade of the Strait of Hormuz had been "highly effective," the network reported.
The comment, attributed to CENTCOM's public affairs office, underscores Washington's emphasis on operations in and around the strategic waterway that links the Persian Gulf to the Gulf of Oman and the Arabian Sea.
The Strait of Hormuz is one of the world's most important maritime chokepoints, through which a significant proportion of global seaborne oil exports pass. Control or disruption of traffic there can have immediate implications for shipping routes, insurance costs and energy markets.
Statements about naval measures in the strait often attract international attention because of the potential for escalation and the broader diplomatic and economic consequences. Analysts say actions in the waterway are closely watched by regional governments, commercial carriers and global markets.
CENTCOM oversees US military operations across much of the Middle East and has frequently been involved in maritime patrols and security efforts in the Gulf. The report to Al Jazeera did not elaborate on operational details in its summary, but the comment will likely prompt further scrutiny by regional and international observers concerned with freedom of navigation and maritime security.