US Secretary of State Marco Rubio has warned that Cuba has built up a significant spy network within the United States, describing the communist-run island as an "espionage superpower." He made the comments during an appearance on Fox News' "My View with Lara Trump," where he discussed the security threat he believes Cuba poses to American institutions.

According to the report, Rubio's remarks focused on espionage and influence operations linked to Havana, alongside broader discussion of US relations with Venezuela and China. The article, drawn from a video segment, does not provide further specific figures or details on the scale or nature of the alleged infiltration beyond Rubio's characterisation of Cuba's intelligence capabilities.