At least 22 Egyptian soccer fans were killed and "dozens" of others were injured in clashes on Sunday night when the security forces barred them from entering a stadium to watch a match in the local league, officials said.
Egyptian domestic soccer competitions have been held before very limited crowds since more than 70 fans were killed three years ago in the most deadly sports riots in the country's history in Port Said.
Egypt's public prosecutor in a statement said 22 people were killed when riots erupted before the match between Zamalek and Enppi in the local soccer league in Cairo.
Security sources said police used tear gas in the operation.
The Ministry of the Interior said "dozens were injured due to the stampede" when some 10,000 "unticketed" supporters tried to storm the stadium.
"Huge numbers of Zamalek club fans came to Air Defense Stadium to attend the match ... and tried to storm the stadium gates by force, which prompted the troops to prevent them from continuing the assault on the stadium facilities," interior ministry said in a statement without giving more details.
