U.S. sanctions imposed on Iranian shipping network over proliferation take effect

U.S. sanctions imposed on Iran's shipping network took effect on Monday, months after they were announced in December following accusations of supporting proliferation of weapons of mass destruction.U.S. Secretary of State Mike Pompeo in a statement on Monday warned commercial and maritime industries, governments and others that they risked U.S. sanctions if they did business with the Islamic Republic of Iran Shipping Lines (IRISL) and its Shanghai-based subsidiary, E-Sail Shipping Company.The S