US sounds alarm on Iran's efforts to build chemical weapons, slaps new sanctions

File photo of a demonstrator wearing a gasmask during a protest against the dismantling of Syrian chemical weapons in Albania on November 7, 2013.
File photo of a demonstrator wearing a gasmask during a protest against the dismantling of Syrian chemical weapons in Albania on November 7, 2013.

The United States on Friday sanctioned an Iranian company over its alleged contribution to Iran's efforts to develop chemical weapons, vowing to block any such attempts in the future.