Russia lost two Pantsir-S1 anti-aircraft missile and gun systems and one OSA air defense system, as well as two S-300 air defense systems, according to Ukraine's military and a wa

Ukraine strikes 3 Russian air defense systems in single day, Navy claims 3,800 North Korean troops killed or injured in Russia's Kursk Oblast, Zelensky says Ukraine's position in Kursk Oblast important for possible negotiations,

Two Russian anti-missile Pantsir-S1 systems and one OSA anti-aircraft vehicle were damaged or destroyed by Ukraine's Navy on Jan. 6, the military branch claimed.

The strikes eliminated two Pantsir-S1 anti-aircraft missile and gun systems and an Osa anti-aircraft missile system. Read also: Ukrainian Navy destroys Russian surveillance systems on gas platforms near Crimea Ukrainian naval forces continue destroying enemy assets on land,

Moscow officials have not addressed statements from aviation experts who blamed the crash on Russian air defenses responding to a Ukrainian attack.

The Azerbaijan Airlines plane flew hundreds of miles off its scheduled route from Baku to Grozny, and crashed on the eastern shore of the Caspian Sea. Russia's aviation watchdog said a bird strike might have been the cause.

"No one claims that it was done on purpose," an Azerbaijan official told Reuters. They added their government "expects the Russian side to confess."

Ukrainian navy sailors destroyed 3 Russian air defense systems in southern Ukraine over the last day. These are the Pantsyr-S1 and the OSA air defense systems, according to the Ukrainian Navy. The Ukrainian Navy destroyed three Russian air defense systems.