Alexei Navalny, a critic of Putin, passes away in prison

Spokeswoman Kira Yarmysh confirmed that Mr Navalny - the most prominent face of the Russian opposition to Mr Putin - had died at a remote Arctic penal colony on Friday. She claimed the 47-year-old had been "murdered". However, she said lawyers for Mr Navalny had been told by authorities that "no crime had been found" following an investigation. Meanwhile, Mr Navalny's mother, Lyudmila Navalnaya, on Saturday travelled to the prison where her son was being held up until his death.