The United States drew closer to its G7 allies on Friday, overcoming differences, at least momentarily, to back Ukraine's territorial integrity and warn Russia to follow Kyiv in accepting a ceasefire or face possible further sanctions.

"G7 members called for Russia to reciprocate by agreeing to a ceasefire on equal terms and implementing it fully," the G7 nations, comprising Britain, Canada, France, Germany, Italy, Japan and the United States, said in a final draft statement seen by Reuters.