“Today I asked the Department of Transportation to stop private charter flights between the US and Cuba,” he wrote on his Twitter.

According to him, the "Castro regime" is using tourism funds to finance "interventions in Venezuela."

Today I asked the Department of Transportation to suspend private charter flights between the US and Cuba. The Castro regime uses tourism and travel funds to finance its abuses and interference in Venezuela. Dictators cannot be allowed to benefit from US travel.

- Secretary Pompeo (@SecPompeo) August 13, 2020

In early June, Pompeo announced the expansion of sanctions against Cuba: the United States added seven more organizations to the corresponding list. 

As noted by Cuban Foreign Minister Bruno Rodriguez Parrilla, the country considers such a decision to be criminal.