“Various high-rise buildings were damaged. Two people were injured, two people died,” the head of the military administration Roman Padun said on social media.

Kurakhove is near the frontlines in eastern Ukraine, 40km west of the Russia-occupied main city of Donetsk.

Outgunned and outmanned Ukrainian troops in the wider region are struggling against Russian forces who are pushing toward the key town of Chasiv Yar.

Ukrainian officials have said Russian forces aimed to seize the hilltop town before May 9, when Russia marks victory over Nazi Germany of World War II, to give President Vladimir Putin a symbolic win.

In an interview with the UK’s The Times, Ukraine’s Ground Forces Commander Oleksandr Pavliuk described a dire situation around the key city.

“We are trying everything we can do to stop the Russian plan to capture Chasiv Yar before May 9,” Pavliuk was quoted as saying.

“But Russians have a 10-to-one ratio of artillery superiority there, and total air superiority,” he said.

Ukrainian forces have been suffering from ammunition shortages, partly due to months-long delays in US aid, which were approved by President Joe Biden last week after Congress finally passed the measure.

Biden vowed to ensure the aid shipments would reach Ukraine swiftly.