Islamists gained increasing influence in part because the government was unable to keep its economic promises. In the late 1970s, Muslim activists engaged in isolated and relatively small-scale assertions of their will: harassing women whom they felt were inappropriately dressed, smashing establishments that served alcohol, and evicting official imams from their mosques. The Islamists escalated their actions in 1982, when they called for the abrogation of the National Charter and the formation of an Islamic government. Amidst an increasing number of violent incidents on campuses, Islamists killed one student. After police arrested 400 Islamists, about 100,000 demonstrators thronged to Friday prayers at the university mosque. The arrests of hundreds more activists, including prominent leaders of the movement, Shaykh Abdelatif Sultani and Shaykh Ahmed Sahnoun, resulted in a lessening of Islamist actions for several years. Nonetheless, in light of the massive support the Islamists could muster, the authorities henceforth viewed them as a potentially grave threat to the state and alternately treated them with harshness and respect.