U.S. officials won't confirm reports on possible Russia invasion of Ukraine on Wednesday

FILE PHOTO: Ukrainian service members walk with M141 Bunker Defeat Munition weapons supplied by the United States during drills at the International Peacekeeping Security Centre near Yavoriv in the Lviv region, Ukraine, February 4, 2022. REUTERS/Roman Baluk/File Photo

WASHINGTON (Reuters) -Senior U.S. officials on Sunday said they could not confirm reports that U.S. intelligence indicates that Russia is planning to invade Ukraine on Wednesday, but said they would try to prevent any "surprise attack" by sharing what they knew of Russia's plans.

White House National Security Adviser Jake Sullivan repeated that a Russian invasion https://graphics.reuters.com/RUSSIA-UKRAINE/dwpkrkwkgvm could begin any day and President Joe Biden has said he will support Ukraine after any invasion and defend NATO territory.