The U.S. is considering dropping leaflets on Caracas as a kind of psychological warfare to pressure Venezuelan President Nicolás Maduro, multiple U.S. officials familiar with the talks told CBS News.

The U.S. declared an alleged cartel in Venezuela a terrorist organization, the latest action targeting the country and the Maduro government.

The Trump's administration has ramped up pressure on Venezuelan President Nicolás Maduro by designating the Cartel de los Soles as a foreign terrorist organization.

Venezuela's aviation institute told international airlines on Monday that they must resume flights to the country within 48 hours or risk losing their clearance to fly there, the International Air Transport Association (IATA) said.

On Monday, the United States formally designated President Nicolás Maduro of Venezuela and his allies in government as members of a foreign terrorist organization called Cartel de los Soles, a group that doesn’t exist.

Venezuela’s authoritarian ruler said “heavy weaponry and missiles” are already deployed and operational as a U.S. military presence lingers in nearby Caribbean waters.

Venezuela has decried a U.S. military buildup close to its shoreline and new measures leveled against its top officials.

Venezuela on Monday rejected the US terrorist designation of an alleged drug cartel on its territory as a "ridiculous lie" aimed at paving the way for an "illegitimate" United States (US) military intervention.