Nadia Savchenko has been refusing food since December 13 last day . Helicopter navigator now declining lethal injections keeping her alive . Human rights advocate Yelena Masyuk warned she is on the brink of death . Prison officials rebuffed her - saying the pilot was stable at the time . she is charged with being involved in Russian reporters ' deaths . But years - old says she is innocent and has been kidnapped by Russia .
Nadia Savchenko has been refusing food since December 13 last year . Helicopter navigator now declining glucose injections keeping her alive . Human rights advocate Yelena Masyuk warned she is on the brink of death . Prison service rebuffed claim - saying the pilot was stable at the moment . Savchenko is charged with being involved in Russian reporters ' deaths . But 33-year-old says she is innocent and has been kidnapped by Russia .