Ukranian President Volodymyr Zelensky addressed the United Nations, urging world leaders to unite against Russia's war in Ukraine and strip Moscow of its veto power on the UN Security Council, among other actions.

President Joe Biden on Wednesday declared Russia's invasion of Ukraine a violation of the global order, sharpening his rebukes of President Vladimir Putin as the war entered a tense new moment.

Uganda declared an outbreak of Ebola after a case of the relatively rare Sudan strain was confirmed in the country, the World Health Organization (WHO) said on Tuesday.