Transcript for Tillerson: Russia 'ultimately bears responsibility' for chemical attacks in Syria

This meeting was about two things. Stopping chemical weapons attacks. And the nine of punitive to those who use or not able to use of such weapons. For an indication of what these weapons these Booth and humans. One need look no farther than is good and Syria. Only yesterday. More than twenty civilians most of those children. Are victims of an apparent chlorine gas attack. The recent attacks in these through racers concerns that the Charlotte's Syrian regime may be continuing issues. The chemical weapons against its own people. Who ever conducted the attacks. Russia ultimately bears responsibility for the victims in the spirit. And countless other Syrians targeted with chemical weapons since Russia became involved. In Syria at a bare minimum Russia must stop vetoing. And at least abstain from future Security Council votes on this issue. Over 25 like minded countries are here today to ensure that those who use chemical weapons will be held accountable. France the UK Germany Turkey and many others. Are here today to uphold. The chemical weapons convention and its vision of a world free of these heinous weapons this initiative puts those who ordered incurred out chemical weapons attacks. All know this. You will face a day of reckoning for your crimes against humanity. And your victims will see justice done. We're calling the community of responsible and civilized nations to put the use of chemical weapons to hand him. The choice is yours. The people of these goods or watching. And the rest of the world is watching as well.

This transcript has been automatically generated and may not be 100% accurate.