Ukrainian forces have struck a rare and prized Russian naval radar system mounted on a vehicle, according to a video released by a Ukrainian military unit. The footage purportedly shows Ukraine targeting a naval version of the Zaslon radar, which was originally developed for the MiG-31 interceptor aircraft.

KYIV—Ukraine said it downed two Russian jet fighters using sea drones equipped with modified U.S.-made missiles, in what military officials in Kyiv said is the first such attack in the history of warfare.

The Ukrainian military on Monday said its air defence units shot down 42 of 116 drones launched by Russia in an overnight attack that hit the regions of Sumy and Donetsk. The military said another 21 drones were lost but did not disclose the fate of the remaining 53,