Venezuelan navy began escorting ships out of its ports after Donald Trump ordered a full blockade of sanctioned tankers that enter or leave Venezuela, following an earlier campaign of interdictions and a tanker seizure that U.S. officials say has killed at least 95 people.The blockade declaration posted on Truth Social targets more than 30 crude carriers already listed by the Treasury Department, though the White House has not specified rules of engagement and some escorted vessels did not appear on the U.S. sanctions list.Markets rose on the announcement, PDVSA said its ships continued sailing with operational guarantees, and experts warned that seizures or strikes near Venezuelan waters could violate international law and worsen humanitarian conditions.