https://www.bbc.com/news/world-europe-54361716
The move adds to a diplomatic row following comments by Mr Pompeo about China and the Catholic Church.
The Vatican accused Mr Pompeo of trying to use that issue to attract voters in November's US presidential election.
In an article earlier this month, Mr Pompeo said the Catholic Church was risking its "moral authority" by renewing an agreement with China regarding the appointment of bishops.
Pompeo and Trump should care more about the loss of the United States "moral authority" than the Catholic church but he doesn't