Officials at the United States department of treasury have imposed sanctions against Mahan Air amid allegations of its support for the Quds Force, an elite division of Iran’s Revolutionary Guard Corps (IRGC).

The Tehran-based commercial carrier is also accused of offering support to the Hezbollah militant group in Lebanon.

The United States argues the carrier provides transportation, funds transfers and personnel travel services to both groups.

In addition, Mahan Air has transported personnel, weapons and goods for Hezbollah, a Lebanon-based designated foreign terrorist organisation, the Treasury said.

The move follows a decision from the department to list four senior officers from the Quds Force for sanctions, alleging they were linked to an assassination attempt on the Saudi ambassador to Washington.

As a result of the designation, all US persons are now barred from doing business with Mahan Air and its assets under US jurisdiction are frozen.