On 10 August 1939, Reinhard Heydrich informed Naujocks of his mission to lead a small group of German operatives to seize the Gleiwitz radio station. Three weeks later, on the night of 31 August, Naujocks led the attack on the German radio station at Gleiwitz, one of twenty-one similar concentrated attacks which the German government quickly attributed to the Poles. Once inside the radio station, a short anti-German message in Polish was broadcast (the precise content of the message is now uncertain). Shots were fired in the studio and a corpse left on the floor near the microphone.