Two Separate Cuba-Headed Relief Sailboats Listed Missing after Departing Mexican Waters.

A large-scale rescue and recovery effort is currently in progress in the Caribbean Sea for a pair of unlocated sailing vessels transporting relief goods en route from the Mexican coast to the island of Cuba.

Naval Rescue Operations Launched

Authorities in Mexico has dispatched naval teams and military search aircraft to find the missing boats, which were transporting a minimum of nine total personnel, according to a navy statement.

The boats had been projected to reach Havana on Tuesday or Wednesday, but there has been a complete lack of contact from them and zero verification of their arrival, authorities reported.

The Situation of Humanitarian Support to the Island

Cuba has relied heavily on aid convoys from Mexico over the past few weeks, as the nation grapples with multiple power outages across the country.

"Both skippers and their teams are seasoned mariners, and the two ships are outfitted with suitable safety equipment and emergency beacons," a representative associated with the mission said.

The nine individuals on board are citizens of Poland, France, Cuba and the US. Mexican authorities said it has opened communications with maritime rescue coordination centres from those nations along with their diplomatic representatives.

"The group is working closely with the relevant authorities and continue to be hopeful in the crews' ability to make it to Cuba without incident," the official further stated.

Earlier Relief Delivery

Earlier in the week, the Cuban authorities publicly celebrated and greeted with fanfare another boat that had delivered 14 tonnes of relief supplies to the country.

That ship, called "Granma 2.0" following the name of the boat in which Castro returned to Cuba to launch the revolution in the 1950s, delivered solar panels, medicines, baby formula, cycles and food.

Broader Political Backdrop

Non-governmental organizations and volunteers have been at the forefront of attempts to bring humanitarian aid to Cuba beginning in January, when a energy blockade on the Communist-run nation came into effect.

Global bodies have since highlighted ""critical" lack of essential goods, with in excess of 50k surgical procedures cancelled in Cuba due to power shortages.

Diplomatic pressure have increased in recent months, with statements from different leaders highlighting the delicate situation regarding relations.

Reacting to recent proposals, a senior official from Cuba insisted that "the socialist system of Cuba is not subject to discussion."

Reports suggest that initial phases of discussions commenced, although their ongoing development remains uncertain.

The maritime authorities said it was dedicated to using every available asset at its reach to locate the vessels and guarantee the security of the people on board.

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