Cuba, one of Venezuela's closest allies, has strongly condemned the US attack that overthrew President Maduro.

"Cuba condemns ⁠and denounces ‍these actions as an act of state terrorism," Cuban President Miguel Diaz-Canel said to a rally of thousands of people in front of the US Embassy in Havana.

"It is a shocking violation of the norms of international law — the military aggression against ⁠a peaceful nation that poses no threat to the United States," he added.

The Cuban government called the attack a "stark imperialist and fascist aggression," the aim of which is to "have access and unrestricted control over the natural resources of Venezuela and the region."

Cuba is largely reliant on Venezuelan oil for its already shaky power grid.

Caracas provides about 30% of Cuba's oil in exchange for medical personnel who go to work in Venezuela.

The largely isolated island has been suffering a six-year-long economic crisis which it blames on tougher sanctions during the first Trump presidency and the decades-long trade embargo.

As a result, it has seen a 15% drop in growth, shortages of basic goods, high inflation, crumbling services and frequent power outages.

It is widely expected that a change of power in Caracas would be a devastating blow for Havana.