A Pair of Cuba-bound Relief Vessels Listed Unaccounted For subsequent to Leaving Mexico.

A extensive search and rescue operation is actively ongoing in the Caribbean waters for a pair of unlocated sailing vessels transporting humanitarian supplies journeying from Mexico to Cuba.

Military Rescue Operations Launched

Mexico has sent navy personnel and military search aircraft to locate the missing boats, which were carrying at least nine personnel, per a official statement.

The vessels had been scheduled to arrive in Havana on Tuesday or Wednesday, but there has been radio silence from them and zero verification of their safe arrival, the navy said.

Background of Aid to the Island

Cuba has relied heavily on aid convoys from Mexico over the last several weeks, as the country struggles through multiple nationwide blackouts.

"The skippers and their teams are veteran seafarers, and each boat are equipped with suitable navigational gear and signalling equipment," a spokesperson associated with the mission said.

The nine-person crew 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 embassy officials.

"We are working closely with the authorities and remain confident in the ability of the crews to reach Havana safely," the spokesperson added.

Earlier Humanitarian Delivery

Previously that week, the Cuban authorities warmly welcomed and greeted with fanfare a different ship that had delivered 14 tonnes of relief supplies to the country.

That boat, called "Granma 2.0" in reference to the yacht in which Castro landed in Cuba to begin the Cuban Revolution in the 1950s, carried solar equipment, drugs, baby formula, cycles and food.

Wider Geopolitical Backdrop

Volunteers and NGOs have largely spearheaded attempts to bring humanitarian aid to Cuba starting at the turn of the year, when a energy blockade on the country began.

The United Nations have since highlighted ""critical" shortages of supplies, with over 50,000 surgeries called off in Cuba amid power shortages.

Diplomatic pressure have increased in recent months, with statements from various officials highlighting the delicate situation regarding diplomatic ties.

Reacting to certain proposals, a senior government figure insisted that "the political system of Cuba is not up for negotiation."

Reports suggest that early stages of negotiations had begun, although their ongoing development remains unclear.

The naval forces said it was pledged to using every available asset at its reach to find the boats and secure the security of the people on board.

To date, there has been silence on the lost ships by the Cuban leadership.