“How did it happen that six leaders of Latin American countries which had criticized US policies and tried to create an influential alliance in order to be independent and sovereign states, fell ill simultaneously with the same disease?” Zyuganov said in comments carried by Russian state television.

“In my view, this was far from a coincidence,” said Zyuganov, the head of Russia’s second-largest political party. He urged an investigation under “international control” into Chavez’s death.

Zyuganov’s claim echoed accusations by Venezuelan Vice President Nicolas Maduro, who alleged last week that Chavez had fallen victim to an “imperialist” plot.