KYIV, Ukraine (AP) — A Ukrainian delegation arrived in the United States for talks Saturday on a U.S.-led diplomatic push to end the nearly 4-year-old war as Russian attacks again took aim at Ukraine's power grid, cutting electricity and heating in freezing temperatures.

Kyrylo Budanov, Ukrainian President Volodymyr Zelenskyy’s chief of staff, said he arrived in the U.S. to discuss “the details of the peace agreement.â€

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