Kiev, Feb 28 (TIWN) The next 24 hours will be crucial for Ukraine's fight with Russia, said Ukrainian President Volodymyr Zelensky on Monday during a phone conversation with British Prime Minister Boris Johnson.

Johnson said he would do all he could to help ensure defensive aid from Britain and other allies reached Ukraine, Xinhua news agency reported citing the National News Agency of Ukraine (Ukrinform).  Meanwhile, the regional government said that the city Berdyansk in southern Ukraine had been seized by Russian troops on Monday morning.