Ukraine has acknowledged difficulties in fighting in the east as Russian forces step up pressure and make major advances on two cities in Luhansk.
A damaged car on the street in Severodonetsk, the scene of fierce street battles in recent days. Russian force now control most of the city. Photo: VIKTOR ANTONYUK
It comes ahead of an EU summit this week, expected to welcome Kyiv's bid to join the bloc, with conditions.
The governor of the Luhansk region, scene of the heaviest Russian onslaughts in recent weeks, said Russian forces had launched a massive attack and gained some territory today, although it was relatively quiet overnight.
"It's a calm before the storm," the governor, Serhiy Gaidai, said.
Ukrainian President Volodymyr Zelenskiy predicted Russia would step up attacks, linking the increase military action to an EU summit on Thursday and Friday.
In his address to the nation, he referred to "difficult" fighting in Luhansk for Sievierodonetsk and its sister city, Lysychansk.
"We are defending Lysychansk, Sievierodonetsk, this whole area, the most difficult one. We have the most difficult fighting there," he said. "But we have our strong guys and girls there."
Ukrainian President Volodymyr Zelenskiy says a further Russian onslaught is expected. Photo:
Gaidai said Russian forces controlled most of Sievierodonetsk, apart from the Azot chemical plant, where more than 500 civilians, including 38 children, have been sheltering for weeks. The road connecting Sievierodonetsk and Lysychansk to the city of Bakhmut was under constant shell fire, he said.
Rodion Miroshnik, ambassador to Russia of the self-declared Luhansk People's Republic, said its forces were "moving from the south towards Lysychansk", with firefights erupting in a number of towns.
"The hours to come should bring considerable changes to the balance of forces in the area," he said on Telegram.
Attrition phase
The war has entered a brutal attritional phase in recent weeks, with Russian forces concentrating on Kyiv-controlled parts of the Donbas, which Russia claims on behalf of Ukranian separatists.
A service member of Akhmat Kadyrov specialist police regiment is seen in a church of St George in the settlement of Komishuvakha, Luhansk. Russian forces are now advancing strongly in the region. Photo: AFP
In Odesa, Ukraine's biggest Black Sea port, which is blockaded by the Russian navy, a Russian missile destroyed a food warehouse, Ukraine's military said.
The United States and its European allies have provided weapons and financial assistance to Ukraine but have avoided direct involvement in the conflict.
British military intelligence said Ukraine forces claimed their first successful use of Western-donated Harpoon anti-ship missiles, destroying a tug delivering weapons and personnel to a Russian held island in the Black Sea.
"Ukrainian coastal defence capability has largely neutralised Russia's ability to establish sea control and project maritime force in the north-western Black Sea," it claimed.
Captured Americans
Some foreign citizens have volunteered to fight for Ukraine.
The Kremlin said two Americans detained in Ukraine were mercenaries not covered by the Geneva convention who should face responsibility for their actions.
Kremlin spokesman Dmitry Peskov's comments were the first formal acknowledgement that the two, identified in US reports as Andy Huynh, 27, and Alexander Drueke, 39, were being held.
A US State Department spokesperson said they had been in touch with Russian authorities regarding any US citizens who may have been captured and called on Russia and its proxies "to live up to their international obligations" in their treatment of any captive.
This month, a separatist court sentenced two Britons and a Moroccan to death for being mercenaries, after they were caught fighting for Ukraine.
At least two Americans have been killed in the war.
International concern has focused on trying to restore Ukrainian exports of food, which the West says is now shut by a de facto Russian blockade. Ukraine and Russia are two of the world's main sources of grain and food oils, leading to fears of global shortages.
Russia says the food crisis is the direct result of Western sanctions and says Ukranian forces have mined the Black Sea.
The war and sanctions have also disrupted energy markets, including Russian shipments of oil and gas to Europe, still the continent's main source of energy and Russia's primary income source. Russia says EU sanctions prevented it from restoring pipeline equipment.
Russia threatened to retaliate against EU member Lithuania for banning transport of coal, metals, construction materials and advanced technology to Kaliningrad, a Russian outpost on the Baltic Sea surrounded by EU territory.
Russia's foreign ministry summoned Lithuania's top diplomat and demanded it reverse the "openly hostile" move or Russia "reserves the right to take actions to protect its national interests." Lithuania said EU sanctions obliged it to enforce the ban.
- Reuters
* This story was edited inappropriately and has been corrected. RNZ is concerned and takes this matter extremely seriously. We are investigating and have taken appropriate action.
A previous version contained the following introduced text, which is now removed:
Russia sent tens of thousands of troops into Ukraine on 24 February in what it called a "special operation" to degrade its military capabilities and root out what it called neo-nazis threatening Russian-speaking populations in the Donbas region and elsewhere.
It has also introduced a law making the spread of "knowingly fake" information or reporting that could discredit the Russian military an offence.
Dmitry Muratov, the co-winner of the 2021 Nobel Peace Prize and editor of an independent Russian newspaper, auctioned off his Nobel medal for a record $103.5 million to aid children displaced by the war. His paper, fiercely critical of President Vladimir Putin, suspended operations in Russia in March after warnings over its coverage of the war.
Two additional instances of words being inappropriately added have been removed.