Ukraine war latest: EU leaders agree to $54 billion funding for Kyiv; Russian ship sunk near occupied Crimea
Key developments on Feb. 1: * All 27 EU leaders agree on 50 billion euro ($54 billion) aid package for Ukraine * Military intelligence: Russian missile ship sunk off occupied Crimea. * Foreign volunteers killed by Russian attack in Kherson * White House won't discuss separating aid to Ukraine from security bill * China cautions