Despite more than a year of warnings that critical Ukrainian nuclear energy infrastructure sites are vulnerable to potential Russian attacks, Ukraine's Energy Ministry has failed to act swiftly to protect them,

International Atomic Energy Agency (IAEA) chief Rafael Grossi arrived in Kyiv on Tuesday and inspected an electricity distribution substation, warning that attacks on Ukraine's power grid could pose a risk of a nuclear accident by disrupting supply.

Russia's continued attacks against Ukraine's power grid heighten the risk of a nuclear accident, International Atomic Energy Agency (IAEA) Director General Rafael Mariano Grossi warned during his visit to Kyiv on Feb.

KYIV: Ukraine said on Thursday it had captured more than 900 Russian troops over six months of fighting in the western Russian Kursk region. Kyiv says a key goal of its struggling operation launched in August just over its border with Russia was to build up reserves of Russian soldiers to exchange for Ukrainian prisoners of war.

The General Staff of Ukraine reported that Kyiv's operation in the Kursk region has been ongoing for six months. Russia has lost nearly 40,000 soldiers there during this period. Over 16,000 have been killed,