El-Beltagy was on the run since the police's bloody crackdown on pro-Morsi sit-in.
Senior Muslim Brotherhood Leader Mohamed El-Beltagy has been arrested Thursday in Giza governorate, Ahram Arabic website reported.
El-Beltagy was observed by the police for two days before his arrest in the rural area of Abo El-Namras in Giza.
He was hiding since the police's bloody crackdown on the pro-Morsi sit-in in Cairo's Rabaa Al-Adawiya.
On Wednesday, El-Beltagy appeared on Al-Jazeera Channel in a pre-recorded video reiterating his condemnation of what he described as a military coup.
El-Beltagy's daughter, Asmaa, seventeen years old, died during the crackdown on 14 August.
El-Beltagy is known for stating that if ousted President Mohamed Morsi returns to office, militant attacks in Sinai Peninsula, ongoing on daily basis since Morsi's ouster on 3 July, will stop.
[This article originally appeared on Ahram Online.]