Russia's upper house of parliament will appeal to President Vladimir Putin to recall the Russian ambassador to Washington, the chamber's speaker said Saturday.
Valentina Matviyenko, the head of the Federation Council, asked the Council's Committee on Foreign Affairs to remove the Russian ambassador to Washington in light of President Barack Obama's warning on Friday that "there will be costs" if Russia intervenes militarily in Ukraine.
In the emergency parliament session in which the upper house unanimously approved President Putin's request to allow the military to enter Ukraine, Matviyenko said Obama had crossed a "red line" during his statements Friday.
It will be up to Putin to decide whether the Russian ambassador is recalled.
The Associated Press and Reuters contributed to this report.