KYIV, UKRAINE • Russian forces are keeping Ukrainian troops tied down with attacks in the eastern Donbas region as Moscow assembles additional combat power there for an expected offensive in the coming weeks, Ukrainian officials said Monday.

Intense fighting that has been raging for weeks continued around the city of Bakhmut and the nearby towns of Soledar and Vuhledar, Ukraine’s presidential office said.

They are located in the Donetsk region, which with neighboring Luhansk region makes up the Donbas, an industrial area bordering Russia.

“The battles for the region are heating up,” Donetsk Gov. Pavlo Kyrylenko said in televised remarks, adding that “the Russians are throwing new units into the battle and eradicating our towns and villages.”

In Luhansk, Gov. Serhii Haidai said shelling there had subsided because “the Russians have been saving ammunition for a large-scale offensive.”

Military analysts say the Kremlin’s forces may be probing Ukrainian defenses for weak points or could be making a feint while preparing for a main thrust through southern Ukraine.

Ukraine envisages possible Russian offensives in the east and the south, Ukrainian military intelligence spokesman Vadym Skibitsky said. He predicted that Russia will likely press its offensive in the Donbas and could also launch an attack in the southern Zaporizhzhia region.

He didn’t say when the offensive might

start but noted that the Russian military would need another couple of months to complete the training of new units.

Skibitsky added that Russia plans to mobilize another 300,000-500,000 in addition to the 300,000 mobilized in the fall.

David Arakhamia, who leads Ukrainian President Volodymyr Zelensky’s Servant of the People party in parliament, said Sunday that Ukraine is preparing for a Russian offensive while planning to counterattack and reclaim its occupied territory.

Russian President Vladimir Putin is hungry for some battlefield success, especially securing illegally annexed territory in eastern Ukraine, to mark the anniversary of his invasion on Feb. 24.

Russian forces made gains in the first few months of the war, though they failed to clinch key objectives and were then driven back from large areas by a Ukrainian counteroffensive.