Russia and Ukraine on Wednesday accused each other of hitting energy infrastructure despite a previous agreement to halt strikes on such facilities.

The Russian Defense Ministry said Ukrainian forces attacked Russian energy infrastructure in the Kursk region twice over the past 24 hours.

The ministry reported one drone attack on a power unit and another artillery shelling on the local electricity operator's facilities.

Meanwhile, Ukrainian President Volodymyr Zelensky said on Telegram that a Russian drone hit a substation in the Sumy region overnight, while an artillery strike damaged a power line in Nikopol in the Dnipro region.

After their separate talks with U.S. delegations in late March, Russia and Ukraine agreed to develop measures implementing a 30-day ceasefire on energy infrastructure.