![Ukraine's leader asks for evidence on new invasion warnings](https://www.ctvnews.ca/polopoly_fs/1.5779547.1644758775!/httpImage/image.jpg_gen/derivatives/landscape_620/image.jpg)
Ukraine's leader asks for evidence on new invasion warnings
CTV
Some airlines have cancelled or diverted flights to Ukraine amid heightened fears that an invasion by Russia is imminent despite intensive weekend talks between the Kremlin and the West.
The White House said President Joe Biden would talk later in the day with Ukrainian President Volodymyr Zelenskyy.
The Ukrainian leader's repeated statements urging calm among his people -- while Russian forces surround Ukraine on three sides in what Russia insists are military exercises -- grew this weekend to Zelenskyy questioning strident warnings from U.S. officials in recent days that Russia could be planning to invade as soon as midweek.
The U.S. picked up intelligence that Russia is looking at Wednesday as a target date, according to a U.S. official familiar with the findings. The official, who was not authorized to speak publicly and did so only on condition of anonymity, would not say how definitive the intelligence was.
"We're not going to give Russia the opportunity to conduct a surprise here, to spring something on Ukraine or the world," Jake Sullivan, the U.S. national security adviser, told CNN on Sunday, about the U.S. warnings.