The United States is interdicting and seizing a vessel off the coast of Venezuela in international waters, three US officials told Reuters on Saturday, a move which comes just days after US President Donald Trump announced a “blockade” of all sanctioned oil tankers entering and leaving Venezuela.

The officials, who were speaking on the condition of anonymity, did not say where the operation was taking place but added the Coast Guard was in the lead.

The Coast Guard and Pentagon referred questions to the White House, which did not immediately respond to a request for comment.

This would mark the second time in recent weeks that the Coast Guard, along with other agencies, seized a sanctioned tanker.

“I am ordering A TOTAL AND COMPLETE BLOCKADE OF ALL SANCTIONED OIL TANKERS going into, and out of, Venezuela,” Trump said on Tuesday.

In the days since US forces seized a sanctioned oil tanker off the coast of Venezuela last week, there has been an effective embargo in place, with loaded vessels carrying millions of barrels of oil staying in Venezuelan waters rather than risk seizure.