The Trump administration is considering suspending the visas of some citizens in countries who have "refused to accept or unreasonably delayed the return of its nationals," according to multiple reports Wednesday evening.

Cambodia, Eritrea, Guinea, and Sierra Leone have refused to take back people in the U.S. who are in the country illegally and been cleared by immigration courts for removal, according to the Washington Times.

DHS requested in a letter to the State Department that it suspend visas to some citizens from the four countries, though it's not known who would be affected.

"When we receive such notification, the Department of State works to implement a visa suspension as expeditiously as possible in the manner the secretary determines most appropriate under the circumstances to achieve the desired goal," a State official told Fox News.

While a presidential candidate, Trump promised to take more action to get countries to take back people the U.S. sought to deport. Eight of the 20 countries that had fought the change are now working with the U.S. government to take back their citizens.

"The secretary [of State] is having conversations with those countries. We want to bring those countries into compliance. We want those countries to be able to take back their citizens," the State official said. "We are having different levels of conversations with those countries and imposing different things upon them based on what we think will work best with those countries."