Russia is bringing more forces on rotation and may attempt further advances, Ukrainian Interior Ministry adviser Vadym Denysenko said on Sunday.

       In a televised address, Mr Denysenko said Russia has started destroying Ukrainian fuel and food storage depots, meaning the government will have to disperse the stocks of both in the near future.

       Russia calls its actions in Ukraine a “special operation” while another missile attack left the western city of Lviv covered in plumes of smoke on Saturday, while President Joe Biden visited neighbouring Poland, serving as a reminder that Moscow is willing to strike anywhere in Ukraine despite its claim to be focusing its offensive on the country’s east.

       Four missiles hit the outskirts of Lviv, just 60km from the Polish border, local officials said, damaging the infrastructure and leaving five injured, but no deaths were reported.

       As Ukraine continues to fight Russia for over a month now since the invasion began on 24 February, a visibly irritated Ukrainian President Volodymyr Zelensky again demanded Western nations send military hardware and asked whether they were intimidated by Moscow.

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       “We’ve already been waiting 31 days. Who is in charge of the Euro-Atlantic community? Is it really still Moscow, because of intimidation?”

       Meanwhile, during the final leg of his four-day trip to Europe, Mr Biden said Vladimir Putin “cannot remain in power” and called him a “butcher”.

       “Ukraine cannot shoot down Russian missiles using shotguns, machine guns, which are too much in supplies,” he added.

       On a trip to Poland to meet ministers and Ukrainian refugees, the US president said the world “will have a brighter future” without Mr Putin in the Kremlin. The White House denied he was calling for regime change.

       The US president was also at the presidential palace in Warsaw for talks with Polish counterpart Andrzej Duda, in which he affirmed Washington DC’s “unwavering commitment” to Poland and Ukraine.