The US Treasury Department on Tuesday slapped sanctions on 11 companies that had ties with Irani Melli Bank
The Irani Bank is suspected by the international officials in supporting nuclear and ballistic missile programs in the Islamic Republic.
"The international community has recognized the proliferation risks posed by Iran's Bank Melli," PetroleumWorld.com quoted Stuart Levey, US undersecretary for terrorism and financial intelligence.
The 11 targeted companies, eight of which are located in Tehran, are affiliated with Melli Bank.
Bank Melli, Iran's largest bank, has been on a US list of companies sanctioned supporting Iran's alleged nuclear aspirations since 2007, and figures on a similar blacklist compiled by Australia and the European Union.