The Kyiv Independent news desk

Key developments on May 23-24: * 'Damage in every district of Kyiv' — Massive Russian ballistic missile, drone attack kills 4, injures 100 * Russia launched Oreshnik missile at Kyiv Oblast in overnight attack, Zelensky confirms * Ukraine strikes major Russian oil pumping station supplying Moscow Oblast, SBU says * Russian drone hits Sumy funeral procession in ‘cynical’ attack, killing 1, injuring 14 Russian forces launched a large-scale combined missile and drone attack overnight on May 24

The number includes 1110 casualties that Russian forces suffered over the past day.

The number includes 950 casualties that Russian forces suffered over the past day.G

Key developments on May 22: * Ukraine denies Russian claim that drone strike killed civilians in occupied Luhansk Oblast * Ukraine strikes Russia's Yaroslavl Oil Refinery 4 times in month, Zelensky confirms * Russia offers university admission boost for students who pass drone piloting exam * Russian attacks kill 5, injure 52 across Ukraine as Dnipro drone strike leaves dozens wounded Ukraine's General Staff on May 22 rejected Russian claims that an overnight Ukrainian drone strike killed

The number includes 880 casualties that Russian forces suffered over the past day.

The annual award, named in honor of the late investigative journalist Georgiy Gongadze, recognizes journalists committed to independent and principled reporting.

Key developments on May 21: * 'Another long-range sanction' — Ukraine strikes Syzran oil refinery, more than 800 kilometers from border * Russia allegedly delivers nuclear warheads for joint exercises with Belarus * Ukraine strikes Russian FSB headquarters in occupied Kherson Oblast, killing and injuring nearly 100 troops * Ukraine developing new low-cost way to down Russian Shahed-type drones * Russian drones hits apartment buildings in Dnipro injuring 15, including 13-year-old boy Ukrai

While Russia lost 67 soldiers per square kilometer of advance in October, that figure rose to 165 in January, 244 in February, 254 in March, and 179 in April, according to Defense Minister Mykhailo Fedorov.

The number includes 910 casualties that Russian forces suffered over the past day.

Russia's security service found depleted uranium in an unexploded missile recovered in Chernihiv Oblast, as NATO warns of "devastating" consequences if nuclear weapons are used in the war.

"Well, they (Russians) know if that happens, the reaction is devastating... Of course, we follow that (exercises), we monitor what is happening," NATO Secretary-General Mark Rutte said.

The number includes 920 casualties that Russian forces suffered over the past day.

*Russia hits Ukraine's Chernihiv, Sumy oblasts in morning attacks, killing 5*Ukraine says it struck major Russian oil refinery, pumping station*China secretly trained Russian soldiers who later fought in Ukraine, Reuters reports*Russia launches large-scale nuclear forces drills after Belarus exercises *Russian military hospitals overwhelmed by wounded soldiers from war in Ukraine, media reportsT

The number includes 1 140 casualties that Russian forces suffered over the past day.

Key developments on May 18: * 'Hide-and-seek with death' — Ukraine details grim situation in Pokrovsk * Ukraine claims control of Stepnohirsk in Zaporizhzhia Oblast, military intelligence says * Belarus starts nuclear drills with Russia days after Zelensky warns of attacks on Ukraine, NATO * Ukraine develops 1st domestically produced guided glide bomb, ready for combat use * Russia calls for Ukraine peace talks to resume after months of downplaying them * At least 2 killed, 51 injured in