Today's top stories cover a range of topics from politics and health to sports and science, with updates on the situation in Ukraine, developments in Northern Ireland, and breakthroughs in technology and medicine.

Ukraine's president says "critical" infrastructure was hit overnight, while emergency services say at least three were killed.

Halk TV says its staff are unable to enter the building in Istanbul, and a new manager was appointed to run the channel.

The Hokkaido Shimbun journalist is accused of collecting information on Moscow's defence capabilities for Tokyo.