On March 20, a tanker that was supposed to deliver fuel to Cuba has changed its destination to Trinidad and Tobago, according to ship-tracking data from LSEG. This comes as Cuba faces a severe fuel shortage that has led to power outages.

The tanker, named Sea Horse and registered in Hong Kong, had loaded diesel earlier this year through a ship-to-ship transfer in the Mediterranean before heading to the Caribbean.

The diesel cargo originated from Russia and was initially intended for Cuba, as reported by multiple maritime intelligence companies. However, the ship has been adrift in the Atlantic Ocean since late February.

Now, the tanker is headed south toward Trinidad, with an expected arrival date on Monday, based on LSEG data.

On Thursday, the U.S. Treasury Department adjusted the terms of a waiver that allowed sales of Russian oil and petroleum products on tankers. The new terms specifically exclude North Korea, Cuba, and Crimea from the transactions. This license is part of efforts by the Trump administration to address rising crude and gas prices amid ongoing conflicts in the Middle East.

This week, the Russian state news agency TASS reported that the Russian government is in discussions with Cuba about possible aid, but no further details have been provided.

Cuba is experiencing frequent power blackouts, having received only two tankers at its ports this year, according to LSEG data. The country relies heavily on imported fuel oil and diesel to produce electricity and prevent additional outages. Meanwhile, gasoline sales are tightly rationed and being sold on the black market for $8 per liter, which is six times the official price.