The US has bowed to pressure to let an overseas-flag MR tanker into hurricane-hit Puerto Rico with much-needed diesel cargo.

Homeland security secretary Alejandro Mayorkas announced a “temporary and targeted” waiver of Jones Act restrictions for Hayfin Capital’s 50,000-dwt GH Parks (built 2009), which had been idling off the coast with 300,000 barrels of fuel on board.

Hundreds of thousands of people on the island remain without power following flooding caused by Hurricane Fiona, but US labour unions had opposed any relaxation of foreign flag rules for shipping.