According to this AFP report, a violent clash broke out on Friday 5 April in Qalyubia, Egypt. Five people are believed to have been killed so far. Egypt has suffered regular incidents of violence between Muslim and Christian citizens for decades. Causes vary but tensions most commonly stem from controversy over religious conversions and disputes regarding the right of Christians to build or repair places of worship.
Since the uprising of 25 January 2011, there has been an escalation in attacks on Christians and churches, as well as the appearance of the new phenomenon of forcibly exiling Christian families from areas where violent incidents have taken place. Some claim this has led to a massive increase in the numbers of Christians seeking to emigrate to the West, particularly since the Muslim Brotherhood rose to power in the wake of the revolution.