The charges that Ogulsapar Muradova will face are still unknown.
Muradova was arrested in June along with two rights activists, one of whom -- Sapardurdy Khajiev -- is to go on trial on August 25 on charges of possessing an illegal weapon. Khajiev is a relative of Tajigul Begmedova, the chairwoman of a Bulgaria-based rights group, the Turkmen Helsinki Foundation.
While it is unclear when Muradova or a third defendant, Annakurban Amanklychev, will go on trial, Radio Free Europe/Radio Liberty's management says sources following the case expect court proceedings against Muradova to start soon after the case against Khajiev begins.
Muradova has been detained without charge and has had no access to legal counsel, which RFE/RL's acting president, Jeff Trimble, has condemned as a violation of Turkmen and international law.
Rights groups including Amnesty International have urged Turkmen authorities to release the three, saying there were "credible allegations" they had been ill-treated in custody.
The Paris-based media watchdog Reporters Without Borders (RSF) said in an August 23 statement that it is "appalled by the attitude of the Turkmen authorities, who are flouting the basic rules of justice and human rights with impunity."