At the funeral of Nasution's daughter Irma, Chief of Staff of the Navy Admiral Eddy Martadinata gave Muslim leaders the signal to attack Communists, who then responded with calls for Holy War against the PKI, a general obligation upon the Muslim community. On 8 October, the PKI head office was ransacked and burned to the ground while firefighters stood by idly. They then marched demanding the dissolution of the Communist Party. The homes of senior party figures, including PKI chairman D. N. Aidit, M. H. Lukman and Nyoto were also torched. The army led a campaign to purge Indonesian society, government and armed forces of the communist party and other leftist organisations. Leading PKI members were immediately arrested, some summarily executed.