This email to me has clarified that at least two members of Amnesty International have been detained along with thirty human rights activists and journalists. The email reads in part :
"Yesterday we heard the shocking news that two Amnesty staff members were among 30 human rights activists, journalists and others who were detained by the Egyptian security forces. They are currently being held in an unknown location and we fear that all may be at risk of torture or other ill treatment.
Please take urgent action to insist the Egyptian authorities immediately release all those detained"