CARACAS—Venezuela will “fulfill its commitments” to Cuba despite United States sanctions targeting oil shipments from the South American country to its ideological ally, Foreign Minister Jorge Arreaza said on April 8.

Washington on April 5 imposed sanctions on 34 vessels owned or operated by state-run oil company Petroleos de Venezuela (PDVSA) as well as on two companies and a vessel that have previously delivered oil to Cuba, aiming to choke off a crucial supply of crude to the Communist-run island.

Venezuela has long sent subsidized crude to Cuba. The United States describes the arrangement as an “oil-for-repression” scheme in which Havana helps socialist President Nicolas Maduro weather an economic crisis and power struggle with the opposition in exchange for fuel.

Arreaza said he would not reveal Venezuela’s “strategy,” but that the sanctions would not stop the shipments.

“When the conventional power of capitalism attacks you, you have to know how to respond through non-conventional means, always respecting international law,” Arreaza told reporters.

The measure came after broader sanctions Washington had slapped on PDVSA in January as part of its bid to oust Maduro.

The United States, along with most Western nations, recognizes Juan Guaido, the leader of the opposition-controlled National Assembly, as Venezuela’s rightful leader. Guaido invoked the country’s constitution to assume an interim presidency in January, arguing Maduro’s May 2018 re-election was a sham.

The opposition last month ordered an end to oil shipments to Cuba, but PDVSA—controlled by military officers loyal to Maduro—has continued the exports.

The most recent fuel shipment to Cuba left Venezuela’s Jose port on April 4, carrying liquefied petroleum gas, according to Refinitiv Eikon data. In the second half of March, two tankers carrying crude and two tankers carrying refined products left for Cuba.

The only tanker sanctioned on April 5, the Despina Andrianna, is currently returning to Jose after unloading crude at Cuba’s Cienfuegos refinery in March. Another three vessels are waiting off Venezuela to load with shipments destined for Cuba.