Urban combat continues in Kostiantynivka as ZNPP loses external power again
Ukrainian forces are engaged in urban combat in Kostiantynivka against enemy personnel who have infiltrated the city, with assault units participating in clearing operations. The city is described as "semi-encircled."
Ukrainian forces are engaged in urban combat in Kostiantynivka against enemy personnel who have infiltrated the city, with assault units participating in clearing operations. A battalion commander described Kostiantynivka as "semi-encircled" due to Russian advances near Chasiv Yar and Berestky. Reports indicate at least a hundred Russian personnel have infiltrated, with some observed in the city center. The Institute for the Study of War (ISW) suggests Russia's primary Donbas offensive focus has shifted to Kostiantynivka from Sloviansk.
Separately, the Zaporizhzhia Nuclear Power Plant (ZNPP) experienced its 19th loss of external power on June 10, around 9 PM, following an attack on an electrical substation. This led the plant to rely on backup diesel generators, a situation confirmed by the International Atomic Energy Agency (IAEA).
Additionally, Ukraine's General Staff confirmed striking the Afipsky oil refinery in Russia's Krasnodar Krai, reporting damage and a fire at the facility.
Sources: Громадське, Радіо Свобода, Українська правда
Sources
Earlier coverage
- Jun 12, 2026, 11:00 AM UTCUrban combat continues in Kostiantynivka, ZNPP loses external power, and Ukraine reports refinery strikes
- Jun 12, 2026, 09:30 AM UTCUrban combat in Kostiantynivka, ZNPP power loss, and refinery strikes reported
- Jun 12, 2026, 08:30 AM UTCUkrainian forces engage in Kostiantynivka urban combat, ZNPP loses external power, and refinery strikes reported
- Jun 11, 2026, 09:00 PM UTCZaporizhzhia nuclear plant loses external power for 19th time; urban combat continues in Kostiantynivka; Afipsky refinery struck
- Jun 11, 2026, 07:30 PM UTCUrban combat continues in Kostiantynivka as ZNPP loses external power again
- Jun 11, 2026, 07:00 PM UTCKostiantynivka urban combat, ZNPP power loss, and Ukrainian drone strikes reported
- Jun 11, 2026, 06:30 PM UTCUkrainian forces engage in urban combat in Kostiantynivka; ZNPP loses external power again
- Jun 11, 2026, 05:30 PM UTCUrban combat continues in Kostiantynivka; Zaporizhzhia nuclear plant loses external power again
- Jun 11, 2026, 05:00 PM UTCUrban combat continues in Kostiantynivka as ZNPP loses external power again
- Jun 11, 2026, 04:30 PM UTCUrban combat continues in Kostiantynivka as Zaporizhzhia NPP loses external power again