The 42-year-old serviceman had reportedly been hiding in abandoned buildings after liberation of Kharkiv

A Russian soldier who had reportedly been hiding for about six months in abandoned buildings after the liberation of the Kharkiv region has been arrested by Ukrainian police.

The soldier, a 42-year-old serviceman from the 27th Russian Separate Guards Motor Rifle Brigade, was taken into custody on Monday as regional police officers patrolled villages in the Kupiansk-Vuzlovyi area.

Ukrainian general says it is using opportunity to kill as many Russian troops as possible and wear down its reserves

Fierce fighting is raging for control of the centre of Bakhmut in eastern Ukraine, forces from both sides of the conflict have said, as casualties continue to mount in the longest and bloodiest battle of Russia’s war.

Russia ratcheted up its efforts to take Bakhmut in early February after months of intense fighting around the town, and has since inched into the small city’s suburbs. Ukraine’s forces are now fighting off attacks from the north, east and south. Their only road out, to the west, is under Russian artillery fire.

Ukraine decides to fight on in Bakhmut, says Zelenskiy aide; Wagner chief worried about ammunition shortages; Nord Stream blasts ‘carried out by dive team’

Yevgeny Prigozhin thanks Kremlin for ‘heroic’ production increase but says concerns about shortages remain

• What we know on day 380 of the invasion

Suspilne’s morning news bulletin has been published on its official Telegram channel. Ukraine’s state broadcaster reports:

At night, Russian troops hit the Nikopol district of the Dnipropetrovsk region with rockets and artillery. As a result of one of the hits, there was significant destruction of the energy facility, three settlements were left without electricity. There are no victims.

Heat supply continues to be restored in Kyiv after yesterday’s shelling: as of this morning, 30% of houses remain without heating, the local authority reported.

Russian missile strikes on Ukraine leave at least nine dead; UN warns urgent action needed to protect Zaporizhzhia nuclear plant after power lost in attacks

• See all our Russia-Ukraine war coverage

Russia unleashed its largest missile bombardment against Ukraine in three weeks in the early hours of Thursday, including six hypersonic missiles able to evade air defences. At least nine civilians were reported killed. Critical infrastructure and residential buildings in 10 regions were hit, President Volodymyr Zelenskiy said. “The occupiers … won’t avoid responsibility for everything they have done.”

At least six of the dead were killed in a strike on a residential area in the western Lviv region, 700km (440 miles) from the frontline, Ukrainian emergency services said. Three buildings were destroyed by fire after the missile attack and rescue workers were combing through rubble looking for more possible victims.

Ukraine’s air force said Russia launched 81 missiles in total, alongside eight Shahed drones. It claimed to have shot down 34 cruise missiles and four of the drones.

The attacks also briefly disconnected Europe’s biggest nuclear power plant from the grid. Ukraine said the Zaporizhzhia plant was forced on to emergency diesel power to prevent a meltdown. It was later reconnected to Ukraine’s energy grid, operator Ukrenergo said.

The UN’s nuclear watchdog chief, Rafael Grossi, told his board of governors that urgent action was needed to protect the Zaporizhzhia plant’s safety and security.

Russia’s defence ministry said it had carried out a “massive retaliatory strike” as payback for a cross-border raid last week. It claimed to have hit all its intended targets, destroying drone bases, disrupting railways and damaging facilities that make and repair arms.

Ukrainian authorities insist they will continue to try to hold the eastern city of Bakhmut, despite suffering an estimated 100-200 casualties a day. Ukraine’s national security chief, Oleksiy Danilov, has said that one Ukrainian is killed for every seven Russians, and claimed that Ukrainian soldiers are killing as many as 1,100 Russians a day. Western officials have estimated Russian casualties in Bakhmut at 20,000-30,000.

Russia’s state-owned news agency Tass claims security services in Moldova’s breakaway region of Transnistria have foiled an assassination attempt on its internationally unrecognised leader, Vadim Krasnoselsky. Tass reported Transnistria’s security forces claimed Ukrainian security services were the source of the plans.

Ukraine’s President Volodymyr Zelenskiy has reportedly been snubbed by the Oscars for the second year in a row. According to Variety, Zelenskiy had been hoping to appear on this Sunday’s telecast following on from previous cultural appearances but the request has been denied.

Ukraine will take part in a European Union scheme to jointly buy gas in global markets, to procure 2bn cubic metres of the fuel ahead of next winter, the EU energy policy chief said.

Belarus’s authoritarian president has signed a bill introducing capital punishment for state officials and military personnel convicted of high treason. The amendments to the country’s criminal code endorsed by President Alexander Lukashenko envisage death sentences for officials and service personnel who cause “irreparable damage” to Belarus’s national security through acts of treason.

Russia has introduced personal sanctions against 144 government officials, journalists, lawmakers and other public figures from the three Baltic states – Estonia, Latvia and Lithuania – deemed “most hostile” to Moscow.

Soldiers and analysts suggest defending city has become more of a political than practical issue, as Russian push continues

• Russia-Ukraine war: latest updates

Ukrainian soldiers are being pummelled on three sides by Russian forces who are trying to capture Bakhmut, a city in the eastern Donetsk region that has become the focus of the longest and one of the bloodiest battles since the war began.

Ukraine’s authorities insist they will continue to try to hold the city despite them suffering an estimated 100-200 casualties a day – with some saying the reason is more political and symbolic than practical. Retreating from the city now, after so many soldiers died fighting to keep it, would be a hard reality to face.

Latest barrage reported to include use of hypersonic missiles, of which Moscow is believed to have only a few dozen

• Ukraine war live – latest updates
• See all our Ukraine coverage

Russia has unleashed a missile barrage targeting energy infrastructure across Ukraine, including the use of hypersonic missiles, in the largest such attack in three weeks.

Critical infrastructure and residential buildings in 10 regions had been hit, the Ukrainian president, Volodymyr Zelenskiy, said. “The occupiers can only terrorise civilians. That’s all they can do. But it won’t help them. They won’t avoid responsibility for everything they have done.”