Jailed Kremlin critic Alexei Navalny says prison plays pro-Putin pop song every morning

Opposition leader says prisoners forced to listen to I am Russian' by Shaman as part of 5am regime

Jailed Kremlin critic Alexei Navalny has complained of being poisoned, assaulted and deprived of proper medical care, but this week he disclosed he faced a new challenge: being forced to listen to a pro-Putin pop singer at 5am every morning.

Navalny, 47, a former lawyer who rose to prominence more than a decade ago by lampooning president Vladimir Putin's elite and voicing allegations of vast corruption, is now in a jail about 60 km (40 miles) north of the Arctic Circle.