Jailed Kremlin critic Navalny at growing risk of kidney failure - medics union

Moscow: Jailed Kremlin critic Alexei Navalny is at increasing risk of kidney failure and his vision is deteriorating after more than two weeks on hunger strike, a medical trade union with ties to the opposition politician said on Saturday.

Navalny, 44, a prominent opponent of Russian President Vladimir Putin, started refusing food on March 31 in protest at what he said was the refusal of prison authorities to treat him properly for acute back and leg pain. "His condition is indeed critical," said Alexandra Zakharova, a representative of the Doctors Alliance trade union - a group that Russian authorities regard as opposition activists.