The US government has blacklisted two Indian tanker masters in a new development aimed at hitting the finances of the Houthi group in Yemen.

The two masters are in charge of tankers previously sanctioned by the US for their alleged links to the Iran oil trade, the 159,700-dwt La Pearl (built 1998) and 160,400-dwt Olympics (built 2001), according to the US Treasury’s Office of Foreign Assets Control.