A Ukrainian airforce pilot who has been on hunger strike in a Russian jail for 81 days could starve to death 'within days ' , a top official has warned as the prison service moved to assure the public her health is 'stable ' . Yelena Masyuk gave the stark assessment of helicopter navigator Nadia Savchenko 's health after visiting the jailed pilot last week . Savchenko , 33 , has been on hunger strike for almost three months , has recently started to decline the glucose injections which have been keeping her alive . Scroll down for video . Starving : Ukrainian pilot Nadia Savchenko is said to be on the brink of death after going on hunger strike . Release : Campaigners are calling on the government to move her out of prison while she awaits trial . But the Russian prison service has since said it is keeping a close watch on the Ukrainian - and has promised she will be moved to hospital as soon as there are 'serious complications ' . Savchenko , who is also a member of the Ukraine parliament , has been refusing food since December 13 in protest against her imprisonment . She has been charged with involvement in the deaths of two Russian reporters in a mortar attack in east Ukraine - charges she strongly denies . Instead , she claims the she was kidnapped and brought to Russia . Late last week , Masyuk , a member of the Kremlin 's rights council , published an impassioned plea for her release on humanitarian grounds . According to the Moscow Times , Masyuk warned : 'Serious problems with her internal organs are beginning . Nadezhda Savchenko could die within days . ' She appealed for Savchenko to be moved to the Ukrainian Embassy , or , failing that , a flat in Moscow . Charges : Russia alleges she was involved in the deaths of two reporters , killed in mortar explosions in fighting in the eastern Ukraine . Pictured : Ukrainian women walk past a wrecked armored personnel carrier . Casualties : But Shavchenko denies all charges and claims she was kidnapped by the Russian government - which is said to back separatists fighting for indepedence in her home country . However , the prison service has apparently taken not of her warning - and has claimed the pilot 's condition is not as serious as first claimed . Anatoly Rudy , the first deputy chief of the prison service , insisted her condition was stable - but if that were to change , they were prepared to move her to a civilian hospital . Speaking to Russian reporters on Tuesday , he said : 'As soon as we see that there are serious complications we will request that civilian medical institutions take her and treat her . ' Putin is also coming under pressure from the international community to release Savchenko . It is understood Ukrainian President Petro Poroshenko , German Chancellor Angela Merkel and French leader Francois Hollande urged the pilot 's release in a phone call late on Monday . Earlier that same day , Poroshenko bestowed on Savchenko the country 's highest honour , Hero of Ukraine , saying she was a 'symbol of the invincibility of the Ukrainian spirit and heroism ' . Discussions : Ukrainian president Petro Poroshenko ( left ) - who awarded Savchenko his country 's highest honour - has asked Russian president Vladamir Putin ( right ) to release the army pilot . Putin 's spokesman Dmitry Peskov declined to comment on Savchenko , referring all inquiries to the Investigative Committee . The committee , which reports directly to Putin , has previously said there was no reason to lift Savchenko 's detention since it had 'indisputable proof ' of her guilt , adding that 'it is for a court ... to decide the degree of her guilt and punishment ' . It added : 'Unlike some politicians and so-called attorneys , we are guided by facts and not emotions or political tastes . ' They claim she was involved in the deaths of two Russian reporters Igor Kornelyuk and Anton . Voloshin , from state television channel Rossiya . The pair were killed on June 18. after being hit with shrapnel during an attack by Ukrainian forces near . the city of Lugansk . Savchenko denies the charges .
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 Ukrainiann reporters ' deaths . But 33-year-old says she is innocent and has been kidnapped by Ukrainian .