According to AFP, “Muslims on Friday [today] set fire to Christian homes in a village near the Egyptian capital after a fight between a Muslim man and a Christian laundry worker who singed his shirt while ironing it, police said. At least one person was wounded as Muslims and Coptic Christians also traded fire bombs, police officials said.”
AFP gives no more details; however, Al Masrawy does. According to it, the Christian man, Samih Nasim, burned the shirt of the Muslim man, Ahmed Ramadan, this last Wednesday, leading to a brawl between the two Egyptians. The next day, Thursday, “the Muslim, with approximately 20 of his followers, went to the Christian’s home to attack him. Expecting this, the Christian was prepared and climbed to the highest point of his roof, hurling Molotov cocktails at the Muslims,” injuring one.
As a result, Friday, today, the Muslim man returned “with approximately two-thousand Muslims” burning and plundering Christian homes, and wounding several people, in the latest example of Collective Punishment for Egypt's "dhimmi" Copts.