Mariupol Remains Contested; Civilians Trapped In City

Ukraine says its last two remaining units in Mariupol have now merged to bolster resistance in the heavily besieged city. Plus, the US and EU have pledged a combined $1.3 billion more in military aid for Ukraine as Russia prepares to launch an eastern offensive. Also, a key Russian warship has sunk, according to a Russian defense ministry statement reported by the state news agency. Ukraine says it hit the vessel, while Russia says it was a fire.

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