General Staff: Crimea, four Russian regions on security alert.

Ukrainian drones struck an explosives plant in Russia's Nizhny Novgorod Oblast, and explosions were heard in Novgorod Oblast overnight on April 30, social media channels reported.

"Consistent with the United States' continued leadership on issues of nuclear safety and non-proliferation, working with Congress, the United States is proactively committing 20%, or $100 million, of the G7's estimated $500 million cost to rehabilitate the NSC arch," the statement read.

"(A)s long as Russia and the Russian authorities continue to be invited, while Ukrainian people continue to be targeted, and attacked on a daily basis, I cannot be present," Commissioner Glenn Micallef said.

The Russian leader voiced readiness to declare a truce in Ukraine for the Victory Day celebrations, which Russia holds on May 9, the Kremlin said.

Ukrainian strikes have left fires burning at the Tuapse refinery and oil slicks along the Black Sea coast ahead of Russia's tourist season.

The strike hit two Russian helicopters during rapid refueling and technical checks, the drone unit said.

Ukraine said it struck Russian air defense and logistics targets in occupied Crimea, including an oil depot in Simferopol and radar systems in Sevastopol.

Russian citizens are prohibited from leaving the country after receiving a draft notice. According to the report, Belarus and Russia share conscription bases, so the Belarusian security services have access to them and can detain a person if they are in the base.

Reform progress has slowed amid the fifth year of Russia's full-scale invasion and gridlock in Ukraine's parliament, delaying billions of dollars, which are conditional on Kyiv implementing the changes.

Semen Kryvonos, the chief of the National Anti-Corruption Bureau of Ukraine, breaks down Ukraine’s most high-profile corruption investigations.

The final vote is expected to happen at a meeting of EU economy ministers on May 5.