Havana - Cuba's President Miguel Diaz-Canel has cautioned the Helms-Burton Law threatens peace, solidarity, peaceful coexistence and friendship.

'It's a law enacted to neo-colonize and enslave,' he further wrote in Twitter about Washington's barring the Peace Boat from docking in Cuban ports, as a result of restrictions recently enforced on US private vessels and planes.

Due to such punitive measures that are hurting the Cuban people, the NGO Peace Boat, with headquarters in Japan, won't be able to touch Cuban land as it was scheduled next June 13 because the vessel is US property.

The cruise ship was reportedly carrying donations given by the Cuban community living in Japan and by Japanese individuals and organizations for the victims of the killer tornado that violently hit municipalities of Havana on January 27.

The peace-promoting NGO has visited Cuba 19 times as part of its itinerary around the world, carrying a message of peace, love and against nuclear weapons.

The Peace Boat came to the island twice last year, and its members participated at a forum dedicated to Cuban historical leader Fidel Castro and paid homage to the thousands of victims the two US atomic attacks caused in the Japanese cities of Hiroshima and Nagasaki.