Two Separate Cuba-bound Aid Vessels Listed Unaccounted For following Departing the Coast of Mexico.

A extensive search and rescue operation is presently under way in the Caribbean waters for a duo of unlocated sailboats loaded with relief goods en route from Mexico to Havana.

Maritime Search and Rescue Operations Initiated

Authorities in Mexico has dispatched naval teams and military search aircraft to find the missing boats, which were carrying a minimum of 9 crew members, as stated by a official statement.

The boats had been expected to make landfall in the Cuban capital on the early part of the week, but there has been no communication from them and no official word of their docking, the statement clarified.

Background of Relief to Cuba

Cuba has relied heavily on humanitarian shipments from Mexico over the last several weeks, as the country grapples with multiple nationwide blackouts.

"Both skippers and their teams are seasoned mariners, and the two ships are equipped with proper safety equipment and communication devices," a representative for the convoy said.

The nine crew members are nationals of Poland, France, Cuba and the US. Officials said it has been in touch with coast guard agencies from the involved countries along with their consular staff.

"The group is co-operating fully with the officials and continue to be hopeful in the crews' ability to make it to Cuba without incident," the statement continued.

Recent Relief Delivery

Earlier in the week, the Cuban authorities warmly welcomed and officially received another boat that had carried 14 tons of humanitarian aid to the island.

That vessel, called "a modern Granma" following the name of the vessel in which Castro returned to Cuba to start the revolution in the mid-20th century, carried solar panels, drugs, formula milk, bikes and foodstuffs.

Broader International Backdrop

Non-governmental organizations and volunteers have been at the forefront of efforts to bring humanitarian aid to Cuba since January, a period which saw a energy blockade on the island nation came into effect.

Global bodies have since highlighted ""critical" lack of essential goods, with over 50k surgical procedures called off in Cuba amid energy rationing.

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

Reacting to previous proposals, a high-ranking Cuban official stated firmly that "the political system of Cuba is not subject to discussion."

Reports suggest that early stages of negotiations had begun, although their present status remains uncertain.

The Mexican navy affirmed it was committed to using the full extent of its capabilities at its command to discover the vessels and guarantee the well-being of the people on board.

As of now, there has been silence on the disappeared vessels by the Cuban government.