CAIRO  - Protesters on Sunday blocked the doors to Cairo's main administrative building as part of a growing campaign of civil disobedience around the country against Islamist President Mohamed Mursi. A group of protesters closed the doors of the Mugamma, a massive labyrinth of bureaucratic offices on the edge of Tahrir Square, leaving only a side exit for employees to leave, employees told AFP. "This is a call for civil disobedience... We want the implementation of the goals of the revolution such as social justice as well as a delay of parliamentary elections," which is set for April 22, one of the protesters told AFP, declining to give his name. "We must break the monopoly of the state by Brotherhood," he said of the Islamist movement from which Mursi hails. Since a November decree that pushed through an Islamist-drafted constitution, Egypt has been deeply divided between Mursi's Islamist supporters and a wide-ranging opposition that accuses the president of betraying the uprising that brought him to office and consolidating power in the hands of his Muslim Brotherhood. Outside the Mugamma, the protesters threatened to extend their protest, adding that the next step could be to close down the television building which also houses the information ministry. In the northern city of Kafr el-Sheikh, hundreds of quarry workers stormed the governorate headquarters to protest against working conditions and forced employees out of the building, chanting against governor Saad al-Husseini, a member of the Muslim Brotherhood. A crippling economic crisis has also fuelled the anger.