On 12 July, 6th Panzer Division counter-attacked and temporarily opened an escape corridor for the besieged troops, but the majority of them were lost when the city fell on 13 July (this phase of the operation is commonly known as the Battle of Vilnius).
Den 12. juli gennemførte 6. panserdivision et modangreb, som midlertidigt åbnede en flugtvej for de belejrede tropper, men hovedparten af dem gik tabt, da byen endeligt faldt den 13. juli. (denne fase af operationen kaldes almindeligvis Slaget om Vilnius).