RUSSIAN opposition leader Alexei Navalny’s alleged cause of death has been released, with allies claiming the “barbaric act” could only have been carried out by Putin’s cronies.

On Saturday, it was revealed leader died in prison after being poisoned with a deadly toxin found in Ecuadorian dart frogs, according to the UK and other allies.

: Kremlin critic Alexei Navalny is pictured in 2020 in MoscowAlexei Navalny was poisoned with a deadly toxin found in Ecuadorian dart frogs, allies sayCredit: Reuters

The neurotoxin is classed as a chemical weapon.

The frog’s poison is 200 times stronger than morphine, with Germany’s foreign minister saying ‘victims suffocate in agony’.

More to come …