Two Separate Cuba-bound Relief Sailboats Declared Missing subsequent to Leaving Mexican Waters.

A comprehensive rescue and recovery operation is currently in progress in the Caribbean waters for a duo of missing sailboats carrying aid cargo en route from the Mexican coast to Cuba.

Military Rescue Efforts Launched

Mexico has deployed navy personnel and military search aircraft to search for the missing boats, which were carrying no fewer than nine total sailors, per a navy statement.

The boats had been scheduled to make landfall in the Cuban capital on Tuesday or Wednesday, but there has been no communication from them and zero verification of their docking, the navy said.

Context of Aid to the Island

The island nation has relied heavily on Mexico's over the last several weeks, as the nation struggles through multiple nationwide blackouts.

"Both crews and captains are experienced sailors, and the two ships are fitted with proper navigational gear and communication devices," an official involved in the effort said.

The nine crew members are citizens of Poland, France, Cuba and the US. Mexico said it has been in touch with coast guard agencies from each country along with their embassy officials.

"We are co-operating fully with the officials and remain confident in the crews' ability to make it to Cuba without incident," the spokesperson added.

Recent Aid Mission

Earlier in the week, the Cuban government publicly celebrated and officially received a different ship that had carried 14 tonnes of relief supplies to the nation.

That ship, nicknamed "Granma 2.0" in reference to the boat in which Fidel Castro landed in Cuba to start the Cuban Revolution in the 1950s, carried solar equipment, pharmaceuticals, baby formula, cycles and food.

Wider Political Context

Volunteers and NGOs have primarily led attempts to bring humanitarian aid to Cuba starting at the turn of the year, when a fuel embargo on the Communist-run nation came into effect.

Global bodies have since warned of ""severe" shortages of supplies, with more than 50k surgical procedures postponed in Cuba due to power shortages.

Foreign policy pressure have increased over the past months, with remarks from different officials underscoring the delicate state of diplomatic ties.

In response to recent statements, a senior Cuban official declared that "the political system of Cuba is non-negotiable."

Accounts suggest that preliminary steps of negotiations had begun, although their current progress remains not publicly known.

The Mexican navy said it was committed to using every available asset at its disposal to find the sailboats and secure the security of the crews.

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