Among the worst-affected areas was the island of Bali, where the PKI had grown rapidly before the crackdown. On 11 November, clashes erupted between the PKI and the Indonesian National Party which ended in the massacre of suspected PKI members and sympathizers. Although much of the anti-PKI violence in the rest of the country was perpetrated by Islamic political organizations, some of the killings in Bali were performed by Hindus. Bali was the only place in the country where local soldiers intervened to lessen the slaughter.