The Russian prison service has reportedly said that jailed Ukrainian pilot Nadia Savchenko, who has been on a hunger strike for nearly three months, has agreed to eat chicken broth.

Savchenko says she was kidnapped by Russian-backed rebels in eastern Ukraine in June and illegally transferred to Russia, where she has been charged with complicity in the killing of two journalists who died covering the conflict.

Russia has rejected repeated Western calls for the release of Savchenko, who began a hunger strike on December 13.