The US is not in a position to confirm reports of the use of chemical weapons in Ukraine, but is working to determine what occurred, US Secretary of State Antony Blinken said on April 13.

Ukraine said earlier it was checking unverified information that Russia may have used chemical weapons while besieging the city of Mariupol

“US isn't in position to confirm reports of use of chemical weapons in Ukraine but was working to determine what actually happened,” said US Secretary of State.