MOSCOW (Reuters) -Russia's lower house of parliament on Wednesday approved a move to withdraw from a landmark agreement with the United States aimed at reducing vast stockpiles of weapons-grade plutonium left over from thousands of Cold War nuclear warheads.

LONDON -- Russia overnight fired more than 300 drones and about three dozen missiles at targets throughout Ukraine, including civilian energy infrastructure and emergency services, Ukrainian President Volodymyr Zelenskyy said on Thursday. The strike included an attack on the State Emergency Service department in the Kharkiv region, he said.

Russia, China, Iran and North Korea are using artificial intelligence to improve their cyberattacks on U.S. companies, governments and individuals, according to new research from Microsoft.

The ranking is based on a comprehensive "TruVal Rating" that assesses modernization, logistical support, and fleet balance. India's higher placement is attributed to its more well-rounded force composition compared to China's fighter-heavy inventory.

The United States has introduced sanctions against Serbia’s main oil supplier, which is controlled by Russia, the company said Thursday. Serbia's president said this could have “unforeseeable” consequences for the Balkan country.

President Donald Trump said Thursday he agreed to meet with Russian President Vladimir Putin in Budapest, Hungary, to discuss ending the war in Ukraine.

President Trump is speaking with Vladimir Putin before his meeting with Volodymyr Zelenskyy as he weighs supplying Ukraine with Tomahawk missiles.

Russia is intensifying drone strikes on Ukraine’s rail network, a critical lifeline for commercial freight, passenger traffic and military logistics