Russia-Ukraine war live: Moscow approves near 30% increase in army spending; South Korean president to meet Ukrainian envoy

South Korean president, Yoon Suk Yeol, met on Wednesday with a Ukrainian envoy and said he hoped the countries would come up with an effective response to the threat posed by Russia’s military cooperation with North Korea, Yoon’s office said.

Russian’s defence ministry said on Wednesday that its forces had taken control of the settlement of Nova Illinka, close to the embattled Donetsk region town of Kurakhove in eastern Ukraine, the TASS state news agency reported.

TASS also cited the defence ministry as saying that Ukrainian forces had attacked the Russian-controlled Zaporizhzhia nuclear power plant with drones and artillery.

Ukraine’s defence ministry is investigating defective mortar shells after at least 100,000 Ukrainian-made 120mm rounds had to be removed from the frontline. Soldiers began saying in early November that the rounds failed to explode, remained stuck in the launcher or fell off target, according to private Ukrainian TV 1+1. The defence ministry confirmed it had stopped using them on the frontline “until the causes of the malfunction are determined” and seized part of the supply.

The Oreshnik intermediate-range ballistic missile fired by Russia at the Ukrainian city of Dnipro last week carried multiple warheads but no explosives and caused limited damage, two senior Ukrainian government sources said. The Kremlin described it as a warning to the west after the US and the UK allowed Ukraine to fire their missiles inside Russia.

Russia said it was expelling a British diplomat that it accused of espionage and had summoned London’s ambassador to the foreign ministry in Moscow. A No 10 spokesperson said: “To be clear, we refute these allegations. They’re baseless. We’re now considering our response. This is not the first time that Putin’s government has made malicious, baseless accusations against our staff.”

On Tuesday the Kremlin also banned cabinet ministers including Angela Rayner, Yvette Cooper and Rachel Reeves from entering Russia under new sanctions. It comes after the UK imposed fresh sanctions on 30 oil tankers from Russia’s “shadow fleet” as Ukraine’s allies try to squeeze Vladimir Putin’s funding of the war.

Russian shelling killed two civilians in the city of Sumy in north-eastern Ukraine on Tuesday, said Volodymyr Zelenskyy, the Ukrainian president. Earlier, Russian forces staged their largest ever drone attack on Ukraine over Monday night into Tuesday – cutting power to much of the western city of Ternopil and damaging residential buildings in Kyiv region, Ukraine’s officials said.

Speaking in Athens, the Nato secretary general, Mark Rutte, has said he wants the alliance “to go further to change the trajectory of the conflict” in the Ukrainians’ favour. Nato needed to more than just “keep Ukraine in the fight”, he suggested. Rutte highlighted the importance of strengthening the bloc’s “deterrence and defence” and the critical need to increase investment and production in the arms industry.

The US is continuing to surge security assistance to bolster Ukraine’s defences in the east, Antony Blinken, Joe Biden’s secretary of state, said on Tuesday after meetings with the Group of Seven democracies.

The Kremlin said it was preparing retaliatory measures, claiming that Ukraine twice fired US-made Atacms missiles into Russia in the last three days. Moscow said both strikes targeted air defence positions in the Kursk region.

Ukrainian prosecutors said on Tuesday that Russian forces had murdered five soldiers immediately after taking them prisoner in the eastern Donetsk region, building on previous war crimes allegations against Moscow. There was no immediate response to the claims from Moscow. The Ukrainian rights ombudsman, Dmytro Lubinets, said he had contacted the UN and International Committee of the Red Cross (ICRC) over the allegations.

A journalist who once freelanced for the US government-funded Radio Free Europe/Radio Liberty was sentenced on Tuesday to four years in prison in Russia after being convicted of cooperating with a foreign organisation. Nika Novak, 24, was found guilty after a closed hearing in the Zabaikalsky regional court in the far-eastern city of Chita. The human rights group Memorial has described Novak as a political prisoner and the RFE/RL president and CEO, Stephen Capus, said: “We condemn today’s unjust conviction and sentencing of RFE/RL journalist Nika Novak in Russia. These politically motivated charges are intended to silence individual reporters and cause a chilling effect.”