Publishedduration53 minutes agoimage copyrightEgyptian Initiative for Personal Rightsimage captionNo details have been given about Mr Abdel-Razek's arrest

The UN's human rights agency has condemned the arrest of three members of a top rights group in Egypt.

Targeting activists was having a "profound chilling effect on an already weakened… civil society", it said.

The head of the Egyptian Initiative for Personal Rights, Gasser Abdel-Razek, was detained on Thursday, days after two colleagues. They are being held for suspected links with a terror group.

Dozens of activists have been arrested under President Abdul Fattah al-Sisi.

But Egypt has repeatedly denied accusations of human rights violations.

Mr Sisi led the military's overthrow of his democratically elected predecessor Mohammed Morsi in 2013 following protests against his rule.