Washington (CNN) The Trump administration is expected to designate Iran's Islamic Revolutionary Guard Corps (IRGC) as a foreign terrorist organization as early as next week, according to a US official.

The designation decision, formally under the State Department's purview, is taking on heightened importance as part of the White House's increasingly aggressive strategy towards Iran.

Officials have been debating whether to make the designation for several months. CNN reported in July 2018 that the administration was considering doing so.

A spokesperson for the White House National Security Council declined to comment and the State Department did not respond to a request for comment.

The Wall Street Journal was first to report the expected designation.

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