Gamal Saber, coordinator for the Hazemoon movement, was arrested in Shubra on Tuesday night for his alleged involvement in clashes that left three people dead.
The prosecution ordered that Saber be detained for four days pending investigation, reported state-owned Al-Ahram.
Three other people alleged to have been involved in the street fight were also arrested, reported state-owned Al-Ahram, along with one person from the nearby Al-Assal neighbourhood.
The arrested were detained at Rod Al-Farrag police station and were transferred to the prosecution on Wednesday.
Clashes erupted on Monday after a fight resulted in the killing of 15-year-old Ahmed Dorra. Eyewitnesses claimed Ahmed Saber, Gamal Saber’s son, was responsible for Dorra’s death.
Following the fight a group of men from the Al-Assal neighbourhood allegedly faced off against Saber’s group. Three died in the clashes before Central Security Forces (CSF) managed to halt the fighting.
The Ministry of the Interior said it was still searching for 26 defendants associated with the outbreak of violence, including Ahmed Saber.
Photos surfaced of Gamel Saber during his arrest, handcuffed and blindfolded, sparking outrage by some parties and politicians.
Former presidential candidate and founder of the Salafi Al-Raya Party Hazem Salah Abu Ismail condemned the blindfolding, holding President Mohamed Morsi responsible for a practice Abu Ismail described as “shameful”.
Freedom and Justice Party (FJP) spokesman Mourad Ali called on the police to apologise for their treatment of Saber, while fellow party member Essam Al-Erian said the development represented a return to old practices by the security apparatus under the former regime.
CSF stationed vehicles on Shubra Street on Tuesday following the clashes in an effort to prevent further conflict in the Rod Al-Farrag neighbourhood.