A Pair of Cuba-Destined Relief Ships Declared Missing following Departing the Coast of Mexico.

A large-scale search and rescue effort is presently in progress in the Caribbean waters for a duo of missing sailing vessels loaded with aid cargo traveling from Mexico to Havana.

Maritime Search and Rescue Efforts Launched

Authorities in Mexico has sent naval assets and reconnaissance aircraft to find the two vessels, which were carrying at least 9 sailors, per a official statement.

The ships had been projected to reach the Cuban capital on the early part of the week, but there has been no communication from them and no official word of their arrival, the statement clarified.

Background of Relief to the Nation

The island nation has relied heavily on humanitarian shipments from Mexico over the past few weeks, as the nation struggles through repeated national electricity failures.

"The crews and captains are experienced sailors, and each boat are fitted with suitable safety equipment and communication devices," a representative involved in the effort commented.

The nine individuals on board are nationals of the United States, Cuba, France, and Poland. Officials said it has established contact with rescue coordination centers from each country along with their embassy officials.

"We are working closely with the officials and are still optimistic in the capability of the sailors to make it to Cuba without incident," the official further stated.

Earlier Aid Delivery

Earlier in the week, the Cuban authorities widely celebrated and greeted with fanfare a different ship that had carried 14 tons of humanitarian aid to the nation.

That vessel, nicknamed "a modern Granma" in reference to the vessel in which Castro came back to Cuba to start the Cuban Revolution in the mid-20th century, delivered solar panels, medicines, formula milk, bikes and foodstuffs.

Wider Political Context

Non-governmental organizations and volunteers have been at the forefront of attempts to ship critical assistance to Cuba starting at the turn of the year, coinciding with the time a oil sanctions on the island nation was initiated.

The United Nations have since warned of ""critical" lack of essential goods, with in excess of 50,000 surgical procedures called off in Cuba because of electricity supply constraints.

Diplomatic tensions have been ramped up lately, with comments from different officials emphasizing the complex state of bilateral relations.

Reacting to previous comments, a high-ranking official from Cuba insisted that "the socialist system of Cuba is non-negotiable."

Indications suggest that initial phases of talks had begun, although their present status remains not publicly known.

The maritime authorities said it was dedicated to using the full extent of its capabilities at its command to find the vessels and secure the well-being of the crews.

To date, there has been silence on the disappeared vessels by the Cuban leadership.