"If Cuban troops and formations do not immediately stop military and other operations that lead to death and undermine the Constitution of Venezuela, a full and comprehensive embargo will be imposed against the island of Cuba, along with the highest-level sanctions," he wrote on Twitter.
Earlier, Venezuelan opposition leader Juan Guaido announced the start of the final phase of Operation Freedom. Later in Caracas, demonstrators protesting against government action staged clashes with members of the Venezuelan National Guard.
In turn, an assistant to the American national security leader, John Bolton, said that the US authorities consider what is happening in Venezuela as "a potentially crucial moment."
In January, Dmitry Rodionov, director of the Center for Geopolitical Studies at the Institute for Innovative Development, expressed an opinion that the United States had long interfered in the internal affairs of the Bolivarian Republic.