Acting upon a rumor. "Egypt Muslims burn Christian shops: police," from [1] AFP, November 21 (thanks to Mackie):

CAIRO -- Hundreds of Muslim protesters on Saturday burnt Christian-owned shops in southern Egypt and attacked a police station where they believed a Christian accused of raping a Muslim girl was being held, a police official said.

Police repelled the demonstrators in the town of Farshut using tear gas and also arrested 60 people during the clashes in which seven Coptic Christian-owned shops were destroyed, the official said.

The protesters hurled stones at the police station after they heard that a Coptic Christian man accused of kidnapping and sexually assaulting a 12-year-old Muslim was being held there, he said....