President Sheinbaum called for dialogue and pledged to send more supplies as soon as the two ships return to Mexico. Two Mexican ships bearing humanitarian aid have docked in the harbour of Cuba's capital Havana, as the United States continues its efforts to cut the island off from outside fuel supplies. On Thursday, pedestrians on Havana's seawall watched as the ships, one of which was the Papaloapan, unloaded white pallets on shore.