Russia and Ukraine both launched fresh strikes on each other's energy infrastructure overnight, according to NBC News, despite a partial truce on energy targets that the White House had previously claimed was holding.

In Kyiv, one person was killed and seven others were injured after strikes hit two gas stations, warehouses and other sites around the Ukrainian capital. The attack is the latest in a long-running Russian campaign to degrade Ukraine's power grid as colder weather approaches.

Ukraine Hits Back

Ukraine's military said it struck the Syzran oil refinery in Russia's Samara region, one of several facilities deep inside Russian territory that Kyiv has targeted in recent weeks. Ukrainian officials also reported separate strikes on a drone production facility in Taganrog and a drone preparation and launch site in Russia's Oryol region.

BOTH SIDES LAUNCHED NEW ATTACKS ON ENERGY OVERNIGHT, DESPITE CLAIMS OF A CEASEFIRE AGREEMENT ON ENERGY INFRASTRUCTURE

The overnight exchange underscores how fragile any informal understanding between Moscow and Kyiv over energy targets has become, even as diplomats continue to search for an opening toward broader peace talks.

What's Next

Neither Moscow nor Kyiv has signaled a willingness to formally codify an energy-infrastructure truce, and officials on both sides say they expect the tit-for-tat strikes on power and fuel facilities to continue through the winter months, when Russia has historically intensified pressure on Ukraine's grid.