The comments from deputy defence minister Hanna Maliar come after Moscow said it had thwarted a major Ukrainian assault in the south of Ukraine's Donetsk region.

Ukraine war latest: Ukrainian forces 'probing' Russia's defences for weaknesses

Posting on the Telegram messaging app, Ms Maliar said that Ukrainian forces were "shifting to offensive actions" in some areas along the frontline but dismissed suggestions that this was part of a major operation.

"Why are the Russians actively releasing information about a counteroffensive? Because they need to divert attention from the defeat in the Bakhmut direction," she wrote.

Earlier on Monday, the Russian defence ministry claimed that forces had pushed back a "large scale" assault at five points in the Donetsk region.

The region was illegally annexed by Russia last year but is only partially controlled by Moscow.

Defence ministry spokesman Igor Konashenkov claimed 250 Ukrainian personnel were killed, and 16 Ukrainian tanks, three infantry fighting vehicles and 21 armoured combat vehicles were destroyed.

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Drone footage also allegedly showed the destruction of Ukrainian equipment.

The head of Russia's private military, the Wagner Group, also claimed that Ukrainian forces have retaken part of a settlement north of Bakhmut - two weeks after the group spearheaded the successful assault on the eastern city, after the longest battle of the war.

Calling it a "disgrace", Yevgeny Prigozhin said Kyiv's forces had retaken the area of Berkhivka.

He urged leaders within Russia's military, including defence minister Sergei Shoigu and the chief of the general staff, Valery Gerasimov, to come to the frontline.

"Come on, you can do it!" He wrote on Telegram. "And if you can't, you'll die heroes."

Ukraine's Ms Maliar said the area around Bakhmut remained the "epicentre" of fighting and that the Ukrainian military was "moving along a fairly wide front".

Meanwhile on Monday, UK Foreign Secretary James Cleverly met Ukrainian President Volodymyr Zelenskyy and the country's foreign minister Dmytro Kuleba, during his second visit to Kyiv.

The pair discussed how the UK can continue to best support Ukraine, from the battlefield to banking guarantees, according to the Foreign, Commonwealth and Development Office.

The visit comes amid preparations for the Ukraine recovery conference in London later in June, which will focus on boosting the nation's economy.