TERNOPIL, Ukraine (Reuters) -At least 26 people were killed and many were listed as missing in a Russian drone and missile attack overnight that hit apartment buildings in the western Ukrainian city of Ternopil, Ukraine's interior minister said on Wednesday.

Another 40 people were wounded in the overnight strikes on Ukraine that targeted energy and transport infrastructure, forcing emergency power cuts in a number of regions.

A large-scale Russian drone and missile attack on Ukraine rocked the western city of Ternopil Tuesday night, killing more than two dozen people, including three children. Ukraine’s Ministry of Internal Affairs said Wednesday that at least 25 people were killed and 73 injured in the strike that hit two nine-story residential buildings.

Ukraine said it had successfully struck targets in Russia using U.S.-supplied ATACMS missiles, ending a months-long absence of the powerful weapon from the battlefield. In a statement shared on Facebook, the General Staff of the Armed Forces of Ukraine called it "an iconic event that emphasizes Ukraine's unwavering devotion to its sovereignty."

Ukrainian officials say a missile and drone attack killed dozens, right as the U.S. Army secretary arrived to push for peace talks.

Pressure is mounting on Ukrainian President Volodymyr Zelensky to take stronger action to show accountability in the face of a corruption scandal presenting the greatest threat to his government since Russia’s full-scale invasion.

It comes amid reports the US and Russia have prepared a 28-point peace plan, allegedly containing major concessions for Ukraine.

Ukraine said it had identified a Russian commander as a suspect in some of the killings in the Kyiv suburb of Bucha in 2022, calling it a vital step towards establishing the chain of command behind the mass executions of civilians there.

Polish and allied aircraft were deployed early on Wednesday to ensure the safety of Polish airspace after Russia launched airstrikes targeting western Ukraine near the border with Poland, armed forces of the NATO-member country said.