The 89th arrived in the German capital on the night of April 29, along with other elements of the 3rd Shock Army, and deployed the 390th, 400th, and 526th Regiments to take part in heavy street-to-street battles in the Wedding and Reinickendorf districts. The division's artillery was put to good effect to level buildings where lurking panzerfaust teams were holding up the unit's advance into the central part of the city. On April 30 the division had encountered the twin four-story structures at Flakturm III at Humboldthain Park. Safaryan ordered that they be encircled, and brought his artillery to bear against the flak towers and had his sappers lay a thousand kilograms of explosives at the foundations. Though they caused a great number of casualties, including inflicting concussions against the defenders within, they were unable to penetrate the four meters of iron and concrete walls. But under withering artillery and anti-tank gun fire, on May 2 the commander of the flak towers agreed to surrender.