The sources said Nazif, who Mubarak sacked along with his cabinet on January 28 in an effort to placate the growing protest movement, was remanded in custody for 15 days.
Nazif was suspected of "illicit gain and graft", the sources said.
The decision was announced after the public prosecutor said Mubarak himself and his two sons would be questioned about complaints they were connected with violence during the protests that left about 800 people dead.
They would also face questioning over allegations of corruption. (*)
Editor: Kunto Wibisono
Copyright © ANTARA 2011