Biden has warned Russia over the Ukraine tensions. (File)
President Joe Biden said Russia would face "swift and severe consequences" from the U.S. and its allies if Moscow attacked Ukraine, but he also kept the path of diplomacy open by suggesting the possibility of dialogue.
"If Russia is sincere about addressing our respective security concerns through dialogue, the United States and our Allies and partners will continue to engage in good faith", Biden said in a statement Monday released by the White House.
"If instead Russia chooses to walk away from diplomacy and attack Ukraine, Russia will bear the responsibility, and it will face swift and severe consequences".