One person killed in incident in Nizhny Novgorod region, according to Russia’s interior ministry

• Russia-Ukraine war – latest news updates

A prominent Russian nationalist writer has been wounded in a car bombing that killed his driver, an attack that Russia immediately blamed on Ukraine and the west.

Zakhar Prilepin’s Audi Q7 was blown up in a village in the Nizny Novgorod region, about 250 miles (400km) east of Moscow, said the state investigative committee, which is treating the incident as an act of terrorism. It said Prilepin had been taken to hospital.

Wagner chief says his forces will pull out of Bakhmut while Ukraine says they are reinforcing positions; Zaporizhzhia villages near frontline evacuated

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The leader of Russia’s Wagner mercenary force has said that his forces will leave Bakhmut, which they have been trying to capture since last summer. Yevgeny Prigozhin said they would pull back on Wednesday 10 May – ending their involvement in the war’s longest battle – because of heavy losses and inadequate ammunition supplies and asked defence chiefs to put regular army troops in their place. But Ukraine said Wagner fighters were reinforcing positions to try to seize the eastern city before that date.

Prigozhin earlier released a video showing him standing in a field of Russian corpses and blaming defence chiefs for the losses suffered by his fighters in Ukraine, appearing to reignite his simmering feud with Russian top brass.

Russia’s defence minister, Sergei Shoigu, has carried out an inspection of troop readiness for forces engaged in the war, in an apparent coded response to Prigozhin’s criticism.

Ukraine said two people have been killed and nine wounded in the eastern Donetsk region and electricity distribution networks have been damaged by shelling in the Donetsk and the Kherson regions.

Some residents left Kherson city in cars and buses on Friday, and others stocked up on groceries, ahead of a 56-hour curfew due to begin on Friday evening. The announcement of the curfew prompted speculation in Kherson that the city is about to be used as a launch point for the long-anticipated Ukrainian counterattack.

Authorities in the Russian-occupied areas of Zaporizhzhia have begun evacuating villages near the frontline. The Russian-installed governor, Yevgeny Balitsky, announced the move in anticipation of a Ukrainian offensive aimed at retaking the area, claiming Kyiv’s forces had “stepped up shelling of settlements close to the frontline” in the past few days.

Engineers have reduced the risk of a dam bursting and damaging the Russian-held Zaporizhzhia nuclear power plant in Ukraine, a senior Russian official was quoted by state news agency Tass as saying on Friday. Renat Karchaa, an adviser to the general director of energy engineering firm Rosenergoatom, said specialists had begun discharging water from the Kakhovka hydroelectric dam on the Dnieper River in southern Ukraine.

A Moscow court has ordered the arrest of a theatre director and a playwright on charges of “justifying terrorism” over an award-winning play about Russian women recruited online to marry radical Islamists in Syria. Director Yevgeniya Berkovich and author Svetlana Petriychuk were placed in custody until 4 July, Russian news agencies reported.

Ukraine’s air force said it downed one of its own drones after it lost control over Kyiv. Andriy Yermak, Ukraine presidential chief of staff, initially said an enemy drone that had been shot down, but the air force later clarified it was Ukrainian and had been destroyed on Thursday.

The White House has dismissed as “ludicrous” claims by Russia that Washington orchestrated drone strikes on Moscow, saying the US was not involved in Wednesday’s incident and accusing Russia of lying.

Finnish power utility Fortum has notified the Kremlin it strongly objects to what it said was Russia’s “unlawful” seizure of its subsidiary in the country. Kremlin spokesperson Dmitry Peskov said the seizure was in accordance with Russian legislation.

Bill Clinton has said he knew in 2011 it was just “a matter of time” before the Russian president attacked Ukraine. “Vladimir Putin told me in 2011 – three years before he took Crimea – that he did not agree with the agreement I made with Boris Yeltsin,” the former US president recalled. “He said … ‘I don’t agree with it. And I do not support it. And I am not bound by it.’ And I knew from that day forward it was just a matter of time.”

In extraordinary video tirade, Yevgeny Prigozhin attacks defence minister and chief of armed forces

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The leader of the Wagner mercenary group has brought escalating tensions with the Kremlin military leadership dramatically into the open after he recorded an expletive-ridden video in a field littered with corpses and blamed Russia’s top defence chiefs for the losses.

“These are Wagner lads who died today. The blood is still fresh,” Yevgeny Prigozhin says in the extraordinary clip, pointing to roughly three-dozen bodies that he says are those of the Wagner fighters. “They came here as volunteers and are dying so you can sit like fat cats in your luxury offices.”

White House says: ‘We had nothing to do with this’; Ukraine’s president says ‘whoever brings war must receive judgement’ in speech to ICC

Here is more on the oil refinery attack from Tass and Reuters.

Part of an oil refinery in southern Russia is on fire after it was hit by a drone attack, Tass news agency cited local emergency services as saying early on Thursday.

Tass said the incident occurred at the Ilsky refinery near the Black Sea port of Novorossiysk. It cited a source as saying a fuel reservoir was on fire but gave no details.

Ukraine rarely claims responsibility for what Moscow says are frequent drone strikes against infrastructure and military targets, particularly in regions close to Russia.

Last June the Novoshakhtinsk oil refinery in Russia’s Rostov region, bordering Ukraine, suspended operations after two unmanned aerial vehicles attacked its facilities.

Citizens of Kherson stock up on food and water ahead of curfew, with some saying they are expecting ‘something big’ in days

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Residents of the key southern Ukrainian city of Kherson are stocking up on food and water after another night of heavy Russian shelling and before an announced 56-hour curfew due to begin on Friday evening.

A number said they planned to stay indoors before the curfew and planned closure of the city, adding that they had slept in their clothes or gone to shelters because of the intensity of the Russian attack.

Strikes kill total of 16 and come after leak suggested Ukraine air defence missiles would run out this week

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Russia has launched a wave of missile and drone attacks on Ukraine, killing 16 as Moscow tested the strength of the country’s air defences in intensified fighting, including eight people after hitting a supermarket in the southern city of Kherson.

The strikes early on Wednesday, the latest in a string of attacks over the last week, come after leaked Pentagon documents suggested Ukraine would run out of missiles for its S-300 primary air defence system on Tuesday unless Kyiv could urgently find replacements.

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Russia has claimed that the Black Sea grain initiative has not allowed it to export agricultural products. State-owned news agency Tass outlines this morning what Russia is looking to achieve with any extension of the deal. It writes:

The Russian foreign ministry indicated that a further decision to extend the deal would depend on the reconnection of Rosselkhozbank [Russian state-owned agricultural bank] to the Swift payment system, the resumption of supplies of agricultural machinery, spare parts and services, the lifting of restrictions on insurance and reinsurance, the lifting of the ban on access to ports, the resumption of operation of the Togliatti-Odesa ammonia pipeline, [and] unblocking foreign assets and accounts of Russian companies associated with the production and transportation of food and fertilisers.

During the meeting, some issues starting with the grain initiative will be discussed. In this regard, we can say that the sides are looking warmly at the extension of the duration. Our wish is that this initiative is extended without any trouble.

Commander of Ukraine ground forces underlines importance Kyiv attaches to holding Bakhmut as preparations continue for a counterattack. This live blog is closed

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Reuters has a quick snap to say that all parties in the Black Sea grain initiative will meet for talks on Wednesday, according to a senior Ukrainian source.

The deal is, according to Russia’s timetable, due to expire on 18 May. The Kremlin has been lukewarm about the prospect of it being extended, arguing that restrictions on Russia’s banking and insurance sector have damaged the country’s own agricultural exports.

Our state has already proven that it can win. We have proven that we can liberate our land from the occupier. All those who ensure the de-occupation have proven that, together with the blue and yellow flag, normal life returns for every person and every family. Our goal is to return this life to the whole of Ukraine, to all those areas that are still temporarily under occupation.

US estimates 20,000 Russian soldiers have died in five months; Black Sea grain initiative talks scheduled for Wednesday