A Pair of Cuba-Destined Relief Ships Reported Unaccounted For subsequent to Leaving Mexico.

A large-scale search and rescue effort is actively ongoing in the Caribbean Sea for a pair of missing sailing vessels transporting aid cargo journeying from the Mexican coast to Havana.

Naval Search Operations Deployed

The Mexican government has dispatched naval assets and military search aircraft to find the two vessels, which were carrying no fewer than nine sailors, per a navy statement.

The vessels had been expected to reach Cuba's capital on Tuesday or Wednesday, but there has been a complete lack of contact from them and zero verification of their docking, the statement clarified.

Background of Aid to the Nation

The island nation has relied heavily on Mexico's over the last several weeks, as the country struggles through repeated national electricity failures.

"Both crews and captains are experienced sailors, and each boat are equipped with suitable safety equipment and communication devices," an official for the convoy stated.

The nine-person crew are citizens of the United States, Cuba, France, and Poland. Mexico said it has opened communications with coast guard agencies from the involved countries along with their diplomatic representatives.

"Our team is working closely with the relevant authorities and remain confident in the crews' ability to safely arrive in Havana," the statement continued.

Recent Aid Mission

Just days before, the government in Havana warmly welcomed and officially received another boat that had delivered 14 tonnes of donated goods to the nation.

That boat, dubbed "Granma 2.0" following the name of the boat in which Castro came back to Cuba to begin the armed struggle in the mid-20th century, delivered solar equipment, drugs, infant formula, cycles and provisions.

Larger Political Backdrop

Non-governmental organizations and volunteers have been at the forefront of attempts to ship essential supplies to Cuba beginning in January, a period which saw a fuel embargo on the island nation came into effect.

Global bodies have since warned of ""severe" lack of essential goods, with in excess of fifty thousand surgical procedures called off in Cuba because of electricity supply constraints.

Diplomatic measures have increased lately, with comments from several officials highlighting the complicated situation regarding bilateral relations.

Responding to certain proposals, a senior government figure insisted that "the socialist system of Cuba is not subject to discussion."

Indications suggest that early stages of negotiations were initiated, although their current progress remains unclear.

The maritime authorities affirmed it was committed to using every available asset at its reach to find the vessels and secure the well-being of the sailors.

As of now, there has been no public statement on the missing boats by the government in Havana.