Key developments on Oct. 20:

• Ukrainian strikes on Yandex data centers disrupt Russian court hearings, media reports
• Ukraine's HUR claims 108 Russian soldiers killed, 29 captured in Sumy Oblast operation
• Power outages in half of Ukraine's oblasts after Russian assault on power plants
• Fire at oil

Key developments on Oct. 19:

• Ukraine evacuates wounded soldier from front line by drone for first time, military says
• Ukraine brings home 23 children from Russian occupation
• Ukraine, Russia nearing agreement on evacuation of civilians from occupied Oleshky, ombudsman says
• 3 waves of Russian missiles slam Kyiv overnight, killing at