The United Nations told Ukraine Saturday that it will work to increase humanitarian assistance in the wake of the Russian invasion.
Secretary General Antonio Guterres, in a phone call with Ukrainian President Volodymyr Zelensky, conveyed the "determination of the United Nations to enhance humanitarian assistance to the people of Ukraine," according to a statement released by the UN.
In addition, the secretary general told Zelensky the UN would launch on Tuesday an appeal to fund its humanitarian operations in Ukraine.
The UN's refugee chief said on Friday that more than 50,000 people had fled the country in 48 hours.
The UN's emergency relief coordinator also demanded Friday for aid workers' "safe, unimpeded access" to carry out humanitarian operations in Ukraine "as soon as the security allows."
Major cities under assault by Russia, including the capital Kyiv, are at risk of being cut off from vital supplies.
