Navi Pillay has asked Egypt’s interim government to provide explanation about the arrest of Morsi and his aides, her spokesman Rupert Colville said at a news briefing in Geneva on Friday
Colville also demanded a full list of people wanted by the army, and also the names of those held in custody.
He said at a news briefing in Geneva on Friday that the Egyptian rulers had given no reply to the UN demands.
“We’ve specifically asked about (Morsi) and his presidential team in addition to others who were arrested. We don’t even know how many people at this point,” said Colville.
Colville said Pillay wants to send a team to Egypt to learn more about its investigation into the ongoing turmoil and shootings.
“We’re waiting for the approval of the authorities and a team is on standby ready to be deployed immediately as soon as such approval is received,” Colville said.
Morsi was arrested by the Egyptian military on July 3, and has not been heard of ever since.
The Egyptian army has also arrested a number of Morsi’s top aides and issued arrest warrants for hundreds of Muslim Brotherhood members and leaders.
Tension has intensified since the Egyptian army overthrew Morsi, suspended the constitution, dissolved the parliament on July 3 and declared the chief justice of Egypt’s Supreme Constitutional Court, Adly Mansour, as interim president the following day.
Dozens of people have since been killed in the wave of violent clashes between Morsi supporters, his opponents and security forces.