Russian attacks on Ukraine overnight killed at least four civilians and wounded 20 other people, President Volodymyr Zelensky said, as he faces a political crisis after firing his popular defense minister.

Zelensky's major reshuffle of his government on Thursday, which included the appointment of a new prime minister, unsettled the country's military leadership and trigged a public outcry. It was an unwelcome difficulty after Ukraine has gained traction in its fight against Russia's more than 4-year-old invasion.

Deadly U.S. strikes overnight hit an airport, a railway station in the port city of Bandar Abbas and two bridges in southern Iran near the Strait of Hormuz, Iranian state media said Friday.

Pakistan said on Thursday it would encourage the United States and Iran to stop violence and resume talks under a memorandum of understanding (MoU) it helped mediate last month.

The United Nations atomic agency's head has denounced the killing of the chief engineer of Ukraine's Russian-occupied Zaporizhzhia nuclear power plant in a drone strike Moscow has blamed on Kyiv.

Tehran on Thursday accused the United States of carrying out a "barbaric attack" after a cancer hospital in Iran's southwest was forced to evacuate due to nearby strikes.

Ukraine's ousted defense minister Mykhailo Fedorov on Thursday accused commander-in-chief Oleksandr Syrsky of trying to divide the war-torn country, detailing a feud between the pair that led to his removal and triggered protests supporting him.

Ukraine's parliament on Thursday approved Serhii Koretskyi, the head of state energy company Naftogaz, as the country's new prime minister, as part of a major government reshuffle initiated by President Volodymyr Zelensky.

Zelensky nominated Koretskyi, citing his record in the energy sector and arguing that he was best placed to help prepare Ukraine for another wartime winter. He was voted in with 289 votes in favor.

EU chief Ursula von der Leyen on Wednesday announced a "drone deal" with Ukraine to boost joint production of the key battlefield technology.

The lifting of border controls between Spain and Gibraltar has closed "an open wound", Spanish Prime Minister Pedro Sanchez said Wednesday as an agreement allowing free movement across the frontier came into force.

Former U.S. president Joe Biden on Wednesday announced the forthcoming publication of a memoir on his time in the White House, and said that his cancer treatment was going "really well."