Muradova was arrested on June 18 and brought to the National Security Ministry. Her three adult children were taken into custody the following day without explanation.
Also arrested last week were two members of the Bulgarian-based Turkmen Helsinki Foundation (THF) rights group, Annakurban Amanklychev and Yelena Ovezova. Sapardurdy Khajiev, a relative of THF Chairwoman Tajigul Begmedova, was also detained without charges.
Turkmen authorities this week claimed to have foiled an alleged THF-sponsored plot to destabilize the country.