The White House is concerned Moscow may be advising Tehran on best practices to manage protests in Iran, drawing on Russia's experience in suppressing open demonstrations, press secretary Karine Jean-Pierre said on Wednesday.
She also said evidence that Iran is helping Russia wage a war against Ukraine is "clear" and "public."
"Our message to Iran is very very clear. Stop killing your people and stop sending weapons to Russia to kill Ukrainians," Jean-Pierre said.
(Reporting by Trevor Hunnicutt and Nandita Bose in Washington; editing by Diane Craft)