Cairo: Egyptians have reacted with shock to the country's first known case of wife-swap involving married couples.

Earlier this week, police arrested the couple who and had allegedly set up a wife-swapping club on the internet using the pseud-onyms Magdy and Samira. About 44 couples were members of the club, according to security sources.

A human rights group in Egypt slammed the police for snooping on couples accused of wife-swapping.

"The case raises serious concerns about due process and the privacy rights of those arrested, especially in light of press reports about police interception of defendants' electronic correspondence," Hossam Bahgat of the Egyptian Initiative for Personal Rights said.

- With inputs from agencies