A large crowd gathered at the Radio Budapest building, which was heavily guarded by the ÁVH. The flash point was reached as a delegation attempting to broadcast their demands was detained and the crowd grew increasingly unruly as rumours spread that the protesters had been shot. Tear gas was thrown from the upper windows and the ÁVH opened fire on the crowd, killing many. The ÁVH tried to re-supply itself by hiding arms inside an ambulance, but the crowd detected the ruse and intercepted it. Hungarian soldiers sent to relieve the ÁVH hesitated and then, tearing the red stars from their caps, sided with the crowd. Provoked by the ÁVH attack, protesters reacted violently. Police cars were set ablaze, guns were seized from military depots and distributed to the masses and symbols of the Communist regime were vandalised.
During the night of 23 October, Hungarian Working People's Party Secretary Ernő Gerő requested Soviet military intervention "to suppress a demonstration that was reaching an ever greater and unprecedented scale". The Soviet leadership had formulated contingency plans for intervention in Hungary several months before.
Angered by Gerő's hard-line rejection, some demonstrators decided to carry out one of their demands, the removal of Stalin's 30-foot-high (9.1 m) bronze statue that was erected in 1951 on the site of a church, which was demolished to make room for the monument. By 21:30, the statue was toppled and crowds celebrated by placing Hungarian flags in Stalin's boots, which was all that was left of the statue.