-- Ukraine's president has lashed out at a BBC report that asserted a secret $400,000 payment was made to U.S. President Donald Trump's longtime lawyer last year to set up talks between the two leaders.
-- Ukraine's main security agency has warned of a potential Russian cyberattack ahead of this weekend's final match of the Champions League soccer tournament.
-- Media reports say a Belarusian court has sentenced a Ukrainian reporter to more than eight years in prison after convicting him of espionage.
-- Activists have announced a global campaign to demand the release of Ukrainian filmmaker Oleh Sentsov, who opposed Moscow's 2014 annexation of Crimea and is now on hunger strike in a Russian prison.
-- Ukraine has showcased the firepower of the Javelin antitank missile systems given to it by the United States last month in a performance President Petro Poroshenko called "a dream come true."
Time stamps on the blog refer to local time in Ukraine