The latest on the Russia–Ukraine crisis, Feb. 27. Click here for updates from Feb. 26. US Urges Americans to Consider Leaving Russia Immediately U.S. citizens should consider leaving Russia immediately on commercial flights, the State Department said on Sunday, citing an increasing number of airlines canceling flights and countries closing their airspace to Russia after its invasion of Ukraine. “U.S. citizens should consider departing Russia immediately via commercial options still available,” said a security alert dated Feb. 27 on the web site of U.S. embassy in Moscow. It has asked U.S. citizens to have “a contingency plan that does not rely on U.S. government assistance.” BP Quits Russia After Ukraine Invasion BP is abandoning its stake in Russian oil giant Rosneft in an abrupt and costly end to three decades of operating in the energy-rich country, marking the most significant move yet by a Western company in response to Moscow’s …