NPR:

Until now, Ukraine’s air defenses say they have largely succeeded in destroying a substantial number of the Russian rockets being fired into the country’s civilian centers. On Thursday, the Kremlin threw in a new wrinkle.

In an early morning attack on targets across the country, Russian forces apparently added several hypersonic missiles, known as Kinzhals — or “Daggers” in Russian — to the lethal mix. Ukrainian forces say their defensive capabilities are not up to the task of taking out a Kinzhal.

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