Russia-Ukraine war live updates: Ukraine says it’s rebuilding for counteroffensives; EU condemns 'reckless' and 'vile' Odesa attack

This is CNBC's live blog tracking developments on the war in Ukraine. See here for the latest updates.

A top Ukrainian military commander says the country's forces are seeking to stabilize the front line and carry out unspecified counteroffensive actions over the coming months.

Ukrainian ground forces commander Oleksandr Pavlyuk said in televised comments on Wednesday that Russian forces were concentrating efforts in eastern Ukraine, near the industrial hub of Avdiivka. Russia said on Feb. 18 that it had seized the Ukrainian town, reflecting its biggest gain in nine months.

European Union leaders sharply criticized a deadly Russian attack on Ukraine's southern port city of Odesa on Wednesday. The attack, which reportedly killed five people, came as Ukrainian President Volodymyr Zelenskyy met with Greek Prime Minister Kyriakos Mitsotakis in the same city.

"No one is intimidated by this new attempt at terror - certainly not the two leaders on the ground nor the brave people of Ukraine," European Commission President Ursula von der Leyen said Wednesday via social media site X.

Russia said it targeted a hangar in Odesa where it said Ukrainian forces were preparing naval drones for operations.

Elsewhere, Lithuanian intelligence agencies warned on Thursday that Russia has sufficient resources to keep fighting "at a similar intensity," at least in the near term. Russia's full-scale invasion of Ukraine entered its third year in late February.

European Union leaders have sharply criticized a deadly Russian missile strike on Ukraine's southern port city of Odesa, near to where President Volodymyr Zelenskyy and Greek Prime Minister Kyriakos Mitsotakis held a meeting.

Zelenskyy and Mitsotakis met in Odesa on Wednesday to pay