Russia's foreign ministry on Thursday warned the United States not to take military action against Iran, amid speculation over whether Washington will enter the war alongside Israel.
"We would like to particularly warn Washington against military intervention in the situation, which would be an extremely dangerous step with truly unpredictable negative consequences," the ministry's spokeswoman Maria Zakharova told reporters.
Earlier, Russian President Vladimir Putin said Iran has not asked its ally Russia for military help amid its escalating air war with Israel.
"Our Iranian friends have not asked us about this," Putin said in response to a question from an AFP reporter at a televized press conference in Saint Petersburg.