In the morning of Wednesday 27 September, thousands of pro-communist strike workers took control over ÖGB regional headquarters in Linz and Graz with their communication infrastructure. Again, the police stayed aside but the Socialists in Vienna scrambled all their resources to weaken the communist influence. By the end of the day police and paramilitary units forced the Communists out of ÖGB buildings in British and American zones. On 28 September, the communists raised seventy volunteers to storm the national ÖGB office in Vienna, and were routed by the police. By 7 p.m. on 27 September, even the Soviets agreed that the strike failed and their radio program instructed Austrian workers to return to work. The ÖGB rejected the strike. The KPÖ took a prominent role in this strike, leading politicians of the incumbent grand coalition to fear a coup d'état, with the goal of the installation of a people's republic. The KPÖ denied these allegations.