QUITO, Ecuador — The Venezuelan government blocked CNN’s Spanish-language channel on Wednesday about a week after the network broadcast an investigation naming Venezuela’s second-in-command as being among officials involved in passport fraud.

In the program, which was broadcast on Feb. 6 and Feb. 8, CNN said it had obtained an intelligence document, during a yearlong investigation, that linked Vice President Tareck El Aissami and others to more than 150 Venezuelan passports and identification papers that were issued to people in the Middle East.

CNN did not say where the intelligence document originated.

The report came days before the Trump administration froze Mr. El Aissami’s American assets and forbid United States companies from doing business with him over accusations that he had been involved in narcotics trafficking. Mr. El Aissami, 42, has vigorously denied any wrongdoing.

The CNN report, which described a passport-for-cash racket run out of the Venezuelan Embassy in Baghdad, appeared to have little overlap with the accusations that led to the sanctions, but one came after the other in a one-two punch that left Venezuela’s government reeling.