Wasu ƙasashen Turai sun yi zargin cewa fitaccen ɗan adawar Rasha, Alexey Navalny, ya mutu ne sakamakon guba mai tsananin haɗari da ake dangantawa da kwaɗon dart, wadda ake ɗauka tana daga cikin gubobi mafi ƙarfi a duniya.
A cewar jami’an Turai, bincike da gwaje-gwajen kimiyya sun nuna alamun cewa an iya amfani da wata guba ta musamman da ba kasafai ake samun ta ba, abin da ya ƙara tayar da tambayoyi kan yadda ya mutu yayin da yake tsare a gidan yari a Russia. Sun ce sakamakon binciken na buƙatar cikakken bayani da bincike mai zaman kansa.
Gwamnatin Rasha ta sha musanta zarge-zargen da ake yi, tana mai cewa mutuwar Navalny ta faru ne saboda matsalar lafiya, ba wani hari ko guba ba. Sai dai ƙasashen Turai da kungiyoyin kare haƙƙin bil’adama na ci gaba da matsa lamba domin a gudanar da bincike mai gaskiya da bude bayanai.
Lamarin ya sake janyo tashin hankali a diflomasiyya tsakanin Rasha da kasashen yamma, inda wasu shugabannin Turai ke kira da a ɗauki matakan hukunci idan aka tabbatar da cewa an kashe shi da gangan.