Ukraine war live updates: Russia accused of using chemical weapons in Ukraine; Odesa faces another ballistic missile attack

This is CNBC's live blog tracking developments on the war in Ukraine. See below for the latest updates. 

The U.S. has formally accused Russia of using chemical weapons against Ukrainian troops and announced late Wednesday that it is imposing more sanctions on Russian individuals and entities.

The U.S. State Department released a statement late Wednesday in which it accused Russia of violating the Chemical Weapons Convention (CWC) by using the choking agent chloropicrin against Ukrainian forces.

In other news, Russian forces launched another missile strike on the Ukrainian port city of Odesa on Wednesday night, this time targeting a postal depot as the city experienced its third attack in as many days. Regional Governor Oleg Kiper said on Telegram that 14 people were injured in the latest attack.

The U.S. has formally accused Russia of using chemical weapons against Ukrainian troops and announced late Wednesday that it is imposing more sanctions on Russian individuals and entities.

The U.S. State Department released a statement late Wednesday in which it accused Russia of violating the Chemical Weapons Convention (CWC) by using the chemical weapon chloropicrin against Ukrainian forces.

"We make this determination in addition to our assessment that Russia has used riot control agents [tear gas] as a method of warfare in Ukraine, also in violation of the CWC. The use of such chemicals is not an isolated incident, and is probably driven by Russian forces' desire to dislodge Ukrainian forces from fortified positions and achieve tactical gains on the battlefield," the statement said.

Chloropicrin was used as a poison gas in World War I but is now more commonly used in agriculture as an insecticide. No longer authorized for