The most important event in Alam's premiership were the riots that took place in June 1963 in response to some of the reforms enforced by the Shah and Alam. It was the clerics who triggered the riots during the Muharram holy days. As the faithful jammed the mosques, the clerics assailed "illegal" Cabinet decisions and urged their followers to "protect your religion." Small-scale riots quickly broke out in the clerical capital of Qum, led by the Rouhollah Khomeini, and in several other cities. Police struck back, arrested Khomeini and some 15 other ringleaders. With that, both sides declared open war and the battle was on