Cubans on Monday cautiously welcomed the imminent arrival of a Russian oil shipment, with some warning it would do little to ease an energy crisis after US President Donald Trump granted a reprieve from his oil blockade.

The Anatoly Kolodkin, a tanker under US sanctions carrying 730,000 barrels of crude, was due to arrive at the western port of Matanzas by Tuesday with the first oil shipment to the communist-ruled island since January.

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