Ukrainian authorities say they have opened an investigation into whether Marie Yovanovitch, the former U.S. ambassador to Kyiv, was illegally spied on before U.S. President Donald Trump abruptly recalled her from her post last year. Secretary of State Mike Pompeo and the State Department have not replied to repeated requests for comment on the alleged surveillance and potential physical threats to the 33-year career diplomat. VOA’s Diplomatic Correspondent Cindy Saine reports from the State Department. VOA's Ukrainian Service contributed to this report.