Two Separate Cuba-Headed Humanitarian Ships Listed Lost following Departing Mexican Waters.

A extensive search and recovery effort is presently under way in the Caribbean waters for a duo of unlocated boats transporting aid cargo en route from Mexico to the island of Cuba.

Maritime Search and Rescue Operations Launched

The Mexican government has sent navy personnel and search planes to search for the two vessels, which were transporting no fewer than nine crew members, according to a military release.

The vessels had been projected to arrive in the Cuban capital on either Tuesday or Wednesday, but there has been radio silence from them and no confirmation of their safe arrival, the navy said.

Context of Relief to Cuba

The Caribbean nation has leaned on Mexico's over the past few weeks, as the nation grapples with widespread power outages across the country.

"The captains and crews are seasoned mariners, and both vessels are equipped with appropriate safety systems and signalling equipment," a representative involved in the effort stated.

The nine individuals on board are citizens of the United States, Cuba, France, and Poland. Mexico said it has established contact with maritime rescue coordination centres from the involved countries along with their embassy officials.

"Our team is working closely with the officials and are still optimistic in the crews' ability to make it to Cuba without incident," the official further stated.

Earlier Humanitarian Delivery

Earlier in the week, the government in Havana widely celebrated and warmly received a different ship that had transported a significant amount of humanitarian aid to the island.

That boat, nicknamed "a modern Granma" in reference to the boat in which the revolutionary leader came back to Cuba to begin the revolution in the 1950s, carried photovoltaic panels, drugs, infant formula, cycles and foodstuffs.

Larger Political Climate

Volunteers and NGOs have primarily led attempts to bring critical assistance to Cuba since January, a period which saw a energy blockade on the country came into effect.

International organizations have since raised alarms about ""severe" supply shortages, with more than 50,000 surgical procedures called off in Cuba because of electricity supply constraints.

Diplomatic pressure have been ramped up over the past months, with comments from different representatives highlighting the delicate situation regarding diplomatic ties.

Responding to recent comments, a senior official from Cuba declared that "the socialist system of Cuba is non-negotiable."

Accounts suggest that initial phases of negotiations commenced, although their present status remains unclear.

The naval forces stated it was committed to using all of the resources at its disposal to find the boats and guarantee the well-being of the people on board.

At this time, there has been no public statement on the lost ships by the government in Havana.