President Volodymyr Zelenskyy and Yuri Ushakov, President Vladimir Putin's foreign affairs adviser, both confirmed the agreement for a three-day ceasefire and an exchange of prisoners.

Zambia was due to host Rights Con, the world's biggest digital rights gathering, this week -- but abruptly canceled the event. Organizers blame Chinese pressure for the decision.

World War 2 Victory Day celebrations in Moscow will be muted this year because of fears of drone attacks, as the public tires of the Ukraine war.

Cold War reports of mysterious rotating saucers; recent sightings of metallic elliptical objects floating in mid-air. Those and other reports of unidentified anomalous phenomena or UAPs — the military's term for UFOs — are described in documents released Friday.

Some schools are warning users not to log back into Canvas yet, after a ransomware group claimed credit for a data breach. Half of North America's higher education institutions use the platform.