A large-scale rescue and recovery effort is currently under way in the Caribbean region for a pair of lost sailboats carrying humanitarian supplies journeying from Mexico to Havana.
Mexico has dispatched naval teams and search planes to search for the missing boats, which were had on board a minimum of 9 personnel, according to a navy statement.
The ships had been scheduled to reach the Cuban capital on either Tuesday or Wednesday, but there has been radio silence from them and no official word of their arrival, the navy said.
The Caribbean nation has relied heavily on Mexico's over the last several weeks, as the country grapples with repeated nationwide blackouts.
"The crews and captains are veteran seafarers, and the two ships are fitted with proper safety equipment and emergency beacons," a spokesperson involved in the effort commented.
The nine individuals on board are from France, Poland, the United States, and Cuba. Mexico said it has opened communications with maritime rescue coordination centres from each country along with their consular staff.
"We are collaborating completely with the relevant authorities and continue to be hopeful in the ability of the crews to reach Havana safely," the spokesperson added.
Earlier in the week, the Cuban authorities warmly welcomed and officially received a separate vessel that had carried 14 tonnes of relief supplies to the island.
That vessel, called "a modern Granma" after the yacht in which the revolutionary leader came back to Cuba to start the Cuban Revolution in the 1950s, carried solar equipment, pharmaceuticals, baby formula, bikes and provisions.
Non-governmental organizations and volunteers have primarily led attempts to ship critical assistance to Cuba since January, when a energy blockade on the Communist-run nation was initiated.
Global bodies have since warned of "dire" shortages of supplies, with over 50k operations postponed in Cuba because of electricity supply constraints.
Diplomatic tensions have increased over the past months, with statements from different officials emphasizing the complicated state of bilateral relations.
Reacting to certain proposals, a prominent official from Cuba insisted that "the governance model of Cuba is not subject to discussion."
Indications suggest that preliminary steps of negotiations were initiated, although their present status remains not publicly known.
The naval forces stated it was committed to using the full extent of its capabilities at its command to find the vessels and guarantee the security of the crews.
To date, there has been silence on the missing boats by the Cuban leadership.