Ukrainian forces also continue to advance in the south towards Kherson, where Russia has ordered civilians to evacuate.
While Mr Zelensky did not offer a direct update on the advance, he said his troops were "strengthening our positions everywhere at the front, reducing the capabilities of the occupiers, destroying their logistics and preparing good news for Ukraine".
But officials in Kyiv have warned that Russian forces are digging in around the city, while intercepted radio reports suggest that newly "mobilised" Russian recruits have been sent there to shore up defences.
Mr Arestovych said on Tuesday that no Russian forces were preparing to withdraw from the city and predicted that "the heaviest of battles is going to take place for Kherson".
Oleksii Reznikov, Ukraine's defence minister, said the pace of the advance was being hampered by wet weather, making the counter-offensive more difficult than the eastern advance that pushed Russian troops rapidly back in September.
Elsewhere, pro-Russian administrators in the eastern Luhansk province said Ukrainian forces had again started to advance in the region. They said heavy fighting was taking place around the towns of Kreminna and Svatove, which fell to Russia earlier this year.
Russian-installed authorities in Crimea said on Thursday they had shot down a Ukrainian drone close to a thermal power plant at Balaklava. Although it had caused a brief fire, officials said there was no threat to the local power supply.
Ukraine's air force said more than 20 Iranian "kamikaze" drones were launched by Russian forces overnight, mainly targeting the southern regions of Mykolaiv and Odesa, and that 19 were destroyed. Local officials said Russian forces also targeted the Kyiv region and said initial reports indicated no-one was hurt.
Source: BBC
Ukrainian forces also continue to advance in the south towards Kherson, where Russia has ordered civilians to evacuate.
While Mr Zelensky did not offer a direct update on the advance, he said his troops were "strengthening our positions everywhere at the front, reducing the capabilities of the occupiers, destroying their logistics and preparing good news for Ukraine".
But officials in Kyiv have warned that Russian forces are digging in around the city, while intercepted radio reports suggest that newly "mobilised" Russian recruits have been sent there to shore up defences.
Mr Arestovych said on Tuesday that no Russian forces were preparing to withdraw from the city and predicted that "the heaviest of battles is going to take place for Kherson".
Oleksii Reznikov, Ukraine's defence minister, said the pace of the advance was being hampered by wet weather, making the counter-offensive more difficult than the eastern advance that pushed Russian troops rapidly back in September.
Elsewhere, pro-Russian administrators in the eastern Luhansk province said Ukrainian forces had again started to advance in the region. They said heavy fighting was taking place around the towns of Kreminna and Svatove, which fell to Russia earlier this year.
Russian-installed authorities in Crimea said on Thursday they had shot down a Ukrainian drone close to a thermal power plant at Balaklava. Although it had caused a brief fire, officials said there was no threat to the local power supply.
Ukraine's air force said more than 20 Iranian "kamikaze" drones were launched by Russian forces overnight, mainly targeting the southern regions of Mykolaiv and Odesa, and that 19 were destroyed. Local officials said Russian forces also targeted the Kyiv region and said initial reports indicated no-one was hurt.
Source: BBC