Masih Alinejad, Iranian journalist and women’s rights activist, speaks on stage at the Women In The World Summit in New York, U.S, April 12, 2019. REUTERS/Brendan McDermid

The United States has sanctioned four Iranian intelligence operatives behind a failed plot to kidnap a US journalist and human rights activist, the US Treasury Department said on Friday.

The sanctions come after US prosecutors in July charged the four with plotting to kidnap the New York-based journalist who was critical of Tehran, whom Reuters previously confirmed was Iranian-American journalist Masih Alinejad.

Iran has called the alleged plot “baseless.”

“The Iranian government’s kidnapping plot is another example of its continued attempt to silence critical voices, wherever they may be,” said Andrea Gacki, head of Treasury’s Office of Foreign Assets Control. “Targeting dissidents abroad demonstrates that the government’s repression extends far beyond Iran’s borders.”

The sanctions block all property of the four Iranians in the United States or in US control, and prohibits any transactions between them and US citizens. Other non-Americans who conduct certain transactions with the four could also be subjected to US sanctions, the department added.

Those sanctioned include senior Iran-based intelligence official Alireza Shahvaroghi Farahani as well as Iranian intelligence operatives Mahmoud Khazein, Kiya Sadeghi and Omid Noori, Treasury said.