A court order to detain ousted president Mohamed Morsi for suspected collaboration with Palestinian militant group Hamas during the 2011 revolution Hosni Mubarak has been denounced by Muslim Brotherhood figures.

Brotherhood spokesman Ahmed Aref said that the decision of the investigating judge to detain ousted president Morsi for 15 days pending investigation was at the behest of the armed forces after the pressures they faced to release Morsi.

In exclusive statements to Ahram Arabic website, Aref said that he believed that the decision to detain Morsi was a message to the international community that Morsi is being prosecuted.

"Is there a lawyer attending the investigations with Dr. Morsi? Was Dr. Morsi given a chance to defend himself? Where is Dr. Morsi in the first place? And was he transferred to the investigating judge or did the judge go to him?" Aref asked.

Morsi has been in the custody of the military since his ouster on 3 July. His location has not been revealed.

“Can the investigating judge tell us where Dr. Morsi is? Is he in detention centres or in the jails of the coup supporters?" Aref added.

"So a court in Egypt miraculously convened, deliberated and charged Morsi by 9am on a weekend” with “every charge of the January 25 revolution” from “Mubarak’s point of view” stated Gehad El-Haddad, the Brotherhood’s official spokesperson for foreign media on his Twitter account.

"The accusations read as if they're a retaliating against the old regime, signalling 'We're back in full force,’ " Brotherhood spokesman Gehad El-Haddad told AFP.

Leading Brotherhood member Essam El-Erian said that the decision to detain Morsi showed the true "fascist military regime" currently in Egypt.

"Announcing a decision to detain a legitimate president who has immunity, who should not stand a trial except under specific constitutional procedures, under very suspicious timing in the absence of the simplest concepts of the state of law as well in the absence of his lawyer, shows the nature of the current struggling fascist military regime," said El-Erian on his official Facebook page earlier Friday.

"The answer to this will be peaceful million man protests in the squares. Our strength is in our peacefulness and our unity as a people against fascism, oppression and corruption," said El-Erian.

“This is the fate of those who participated in January revolution at the hands of Mubarak's men who returned back to get revenge on the people,” said El-Erian.

Hamas also criticised the decision on Friday to detain Morsi for questioning over suspected collaboration with the Palestinian militant group.

"Hamas condemns this move since it is based on the premise that the Hamas movement is hostile," spokesman Sami Abu Zuhri told AFP.

"This is a dangerous development, which confirms that the current powers in Egypt are giving up on national causes and even using these issues to deal with other parties -- first among them the Palestinian cause."

A top Egyptian court has ordered the detention of ousted president Mohamed Morsi for 15 days pending investigations into his suspected collaboration with Palestinian Islamist group Hamas.

Morsi is accused of collaborating with Hamas to escape, along with other political prisoners, from Wadi El-Natroun Prison and destroy prison records during the 2011 uprising; collaborating with Hamas to attack police stations during the uprising; the intentional killing and abduction of police officers and prisoners during the uprising, and espionage.

Mohamed Morsi has been held incommunicado at a secret location since he was removed from the presidency by the army on 3 July following mass nationwide protests.