Police arrested Khairat al-Shater, deputy supreme guide of the Muslim Brotherhood, on Friday night, local television reported showing the video of the arrest.
The arrest came an hour after a statement by the military spokesperson, saying that there have been no political detentions since June 30.
In the statement published on his official Facebook page, the spokesperson said that all reports about the arrest and detention of Egyptian politicians are false and called on the media to verify information.
On Thursday, media reports circulated about the arrest of Muslim Brotherhood Supreme Guide Mohamed Badie from Marsa Matrouh. However, Badie appeared at a sit-in of Brotherhood members of supporters at the Rabea al-Adaweya Mosque in Cairo Friday. Protesters there have been gathering in support of the recently deposed President Mohamed Morsi, who was ousted by a military intervention following masses taking to the streets calling for his resignation.
Meanwhile, security sources told MENA that Salafi leader Hazem Salah Abu Ismail and is brother were arrested Friday from their apartment in Dokki, Giza. Eyewitnesses told Mada Masr that they saw military and security vehicles surrounding the residence. Supporters of Abu Ismail have staged several protests in the past months in front of the Ministry of Defense, the Media Production City, and the Supreme Constitutional Court.
Other reported arrests include the former Supreme Guide Mahdi Akef, who, alongside Badie, was reportedly accused of inciting violence.
In his official Facebook page, the spokesperson also denied reports circulating about members of the Armed Forces pressuring their commander, Abdel Fattah al-Sisi, to reverse the statement he issued on Wednesday removing Morsi from office. He called such reports rumors intended at spreading false impressions about divisions within the Armed Forces.
The Associated Press reported Friday that Morsi had tried to approach sympathetic members of the Second Army — a field army tasked with protecting the Suez Canal — to overturn Sisi's decision to oust him. The Armed Forces immediately denied any reports of internal divisions.
The Freedom and Justice Party website reported on Friday night that the Presidential Guards are negotiating a way out of the current stalemate with Morsi. The claim could not be verified.