sentences:  German forces encountered a unit equipped with the Soviet KV heavy tanks for the first time.On 23 June, "Kampfgruppe" von Seckendorff of the 6th Panzer Division, consisting of 114th Panzergrenadier Regiment (motorized infantry), "Aufklärungsabteilung" 57 (Panzer Reconnaissance Battalion 57), one company of "Panzerjäger" Battalion 41 and Motorcycle Battalion 6 was overrun by the 2nd Tank Division (General Yegor Solyankin) from the 3rd Mechanised Corps near Skaudvilė.The German Panzer 35(t) tanks and anti-tank weapons were ineffective against the Soviet heavy tanks, some of which were out of ammunition but closed in and destroyed German antitank guns by driving over them.