File photo: Fans of Egypt's Zamalek cheer and shout slogan (Photo: Reuters)
Police used teargas to disperse Zamalek's hardcore fans from outside the Supreme Court in Cairo on Tuesday.
Hundreds of Zamalek's Ultras White Knights (UWK007) gathered outside the court near Cairo's Tahrir Square to demand the release of the group's leader, Sayed Moshagheb, who was detained on Friday.
"Sayed is still being detained after 24 hours and we don't know where he is or why he was arrested," read the latest statement on the group's Facebook page which has over 300,000 fans.
"We will not leave until we know where Sayed is. Our demonstration is peaceful. We call on all fans to gather to pressure the authorities.
"We will not allow any political party to use our protest for their own interests. This is a continuation of the January 25 Revolution and its principles."
Some arrests were made at the protest, according to media reports.