Why did some Soviet troops escape the German encirclement at Minsk?

During the German invasion of the Soviet Union in 1941, many Soviet troops were able to escape the encirclement at Minsk primarily because the German infantry was unable to follow up the rapid advance of their armored groups quickly enough to close the trap.1

While the armored groups under Generals Heinz Guderian and Hermann Hoth successfully converged on Minsk by June 27, 1941, the lack of sufficient infantry support meant the encirclement could not be completed in time to prevent a large portion of the Soviet forces from withdrawing to the east. Although this maneuver resulted in the capture of 300,000 prisoners, the failure to fully seal the pocket allowed many Soviet units to escape, which significantly hindered the German objective of achieving a quick victory.12