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Mohammed Abu Zaid, Associated Press
A protester holding spent casings from Egyptian security forces chants slogans during a protest near Tahrir Square in Cairo, Egypt, Sunday, Feb. 5, 2012. Volleys of tear gas left a white cloud over Cairo's Tahrir Square and surrounding streets in the vicinity of Egypt's Interior Ministry, in the fourth day of clashes between security forces and rock-throwing youth protesting a deadly soccer riot.

CAIRO — An airport official says the CEO of Mideast investment bank EFG Hermes has been stopped at Cairo international airport by authorities who banned him from traveling abroad.

The airport official says that Yasser el-Mallawany was set to fly to the United Arab Emirates on Sunday, but authorities barred him from leaving Egypt upon orders from the country's attorney general.

A Justice Ministry official says that el-Mallawany and Gamal Omar, a close friend of ousted President Hosni Mubarak's son, Gamal, are being investigated for allegedly paying thugs to attack revolutionary youth after a soccer match in the Egyptian city of Port Said. In a riot there last week, 74 people were killed.

The officials spoke on condition of anonymity because they were not authorized to speak to reporters.