Two Separate Cuba-Headed Aid Sailboats Listed Missing following Departing Mexican Waters.

A extensive search and rescue effort is currently under way in the Caribbean waters for a duo of missing boats carrying relief goods traveling from Mexico to Havana.

Naval Search Missions Launched

The Mexican government has dispatched naval teams and search planes to find the two vessels, which were had on board at least nine crew members, according to a official statement.

The vessels had been projected to reach Cuba's capital on the early part of the week, but there has been no communication from them and no official word of their safe arrival, the navy said.

Context of Aid to the Nation

Cuba has leaned on aid convoys from Mexico over the past few weeks, as the island endures repeated power outages across the country.

"The crews and captains are veteran seafarers, and each boat are equipped with appropriate safety systems and emergency beacons," a spokesperson involved in the effort said.

The nine-person crew are citizens of Poland, France, Cuba and the US. Mexican authorities said it has been in touch with coast guard agencies from the involved countries along with their consular staff.

"We are working closely with the officials and are still optimistic in the ability of the crews to reach Havana safely," the spokesperson added.

Previous Humanitarian Shipment

Just days before, the government in Havana widely celebrated and officially received a separate vessel that had delivered a significant amount of donated goods to the nation.

That boat, dubbed "a new Granma" after the boat in which the revolutionary leader returned to Cuba to begin the Cuban Revolution in the 1950s, carried photovoltaic panels, pharmaceuticals, infant formula, bicycles and food.

Larger Geopolitical Climate

Charity groups and individuals have been at the forefront of attempts to bring essential supplies to Cuba beginning in January, when a oil sanctions on the island nation was initiated.

The United Nations have since warned of ""severe" supply shortages, with more than 50k operations called off in Cuba because of electricity supply constraints.

Foreign policy measures have increased over the past months, with comments from various leaders underscoring the delicate state of relations.

In response to previous proposals, a high-ranking Cuban official declared that "the socialist system of Cuba is not up for negotiation."

Accounts suggest that early stages of negotiations commenced, although their ongoing development remains unclear.

The maritime authorities affirmed it was committed to using every available asset at its disposal to find the sailboats and ensure the security of the people on board.

At this time, there has been no official comment on the disappeared vessels by the Cuban leadership.