 Accompanying them were the leading tanks of Colonel-General Mikhail Katukov's 1st Guards Tank Army.Sometime after midnight, a corps of Colonel-General Nikolai Berzarin's 5th Shock Army crossed the Spree close to Treptow Park.At dawn on 24 April the LVI Panzer Corps still under Weidling's direct command, counterattacked, but were severely mauled by the 5th Shock Army, which was able to continue its advance around mid-day.