FBI may investigate
Sunday's demonstration came during the Islamic Society of North America's annual convention at nearby Cobo Center.
US military launches airstrikes, drops humanitarian aid to help beleaguered city in Iraq
The Rafah operation is almost certain to be a focus of U.N. investigators because it highlights the treatment of civilians.
British police said earlier that a European arrest warrant was issued for the boy's parents, Brett and Naghemeh.
The girls were coiffed and made up by volunteers, and their dresses were loaned by a formal wear shop.
"The sadness of feeling yourself trapped in a hole is inmense but I never lost hope."
The airstrikes destroyed an armed vehicle, a fighting position and weapons and significantly damaged an Islamic State building.
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17,000 Gaza housing units were destroyed or severely damaged during this summer's war and 5,000 units still need work after damage.
President Barack Obama played down the prospect of imminent U.S. military action in Syria on Thursday.
Obama says degrading Islamic State militants is going to require a "regional strategy" and assistance from partners in the Middle East.
Israel's prime minister declared victory Wednesday in the recent war against Hamas in the Gaza Strip.
A U.S. journalist speaking publicly for the first time since his release from a Syrian extremist group.
The mission, if it went forward, would be the second recent U.S. military humanitarian intervention in Iraq.