Ukraine war latest: Russian forces suspected of killing 6 Ukrainian POWs in Donetsk Oblast
Key developments on Jan. 23: * Russian forces suspected of killing 6 Ukrainian POWs in Donetsk Oblast * Ukrainian soldiers near Velyka Novosilka at risk of encirclement, spokesperson says * Zelensky clarifies comment on 200,000 peacekeepers, says figure depends on Ukrainian army size * NATO chief urges US to keep arming Ukraine, pledges