The US Treasury put seven crude carriers and four product tankers on its sanctions list on Thursday over links to Iran’s regime and its allies Hezbollah in Lebanon.

The ships include the 306,300-dwt Young Yong (ex-Maran Castor, built 2001) and 105,700-dwt Zephyr I (built 2002), which have either hit another ship or grounded in South East Asia since late September.

The US links the sanctioned ships to Viktor Sergiyovich Artemov, a Ukrainian national based in Geneva, as well as to several other companies that include Monumont Ship Management, an Istanbul-based outfit that has been notably active on the sale-and-purchase scene for tankers since 2021.