U.S. Senators visit Poland to meet with U.S. military leaders, NGOs, and Ukrainian refugees.

RELATED: Ukraine invasion: Quarter of nation displaced, Putin speaks at rally https://bit.ly/3imA3cu

Russia’s invasion of Ukraine has entered its fourth week without capturing Kyiv or toppling Ukraine’s government, but the bombardment of Ukrainian cities continues — a move western defense experts warn could be a sign of a cruel and intentional strategy.

Russia stepped up its attacks Friday, saying it used its first hypersonic missile to destroy a large underground warehouse containing missiles and aviation ammunition in the village of Deliatyn. Missiles and shelling struck at the edges of Kyiv and an aircraft repair installation was attacked outside the western city of Lviv. Hospitals, schools and buildings where people sought safety have been attacked around the country.

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