Empresas y finanzas

U.S. expands sanctions on Iran, blacklists firms and persons



    WASHINGTON (Reuters) - The United States ratcheted up its sanctions against Iran on Thursday, blacklisting a number of firms and individuals for contributing to what it says is an effort to acquire nuclear weapons.

    The U.S. Treasury said it was also identifying a number of "front companies and banks" linked to nuclear proliferation, an attempt to make it harder to evade existing sanctions.

    (Reporting by Pedro da Costa; Editing by Jackie Frank)