This post originally appeared at Clarion Project:

A U.S. government agency confirmed in a letter to the Clarion Project that an investigation into a terror-linked Islamist cult named Muslims of America (MOA) is ongoing. The group is known for its “Islamic villages” in North America, with its “Islamberg” headquarters receiving the most attention.

The October 19 letter from the Justice Department’s Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) states that 10 documents from a previous investigation into MOA must be withheld because “the investigation related to the documents that were referred is still open.”

The Justice Department says that releasing the information could interfere with law enforcement proceedings as they concern an “ongoing investigation.”

Muslims of America (MOA) used to be known as Jamaat ul-Fuqra when it carried out a series of terrorist attacks on U.S. soil from the 1970s to the early 1990s. The group is led by a radical cleric in Pakistan and claims to have 22 “villages” in the U.S., some of which are known to have been used for basic military-type training.

FBI documents from 2003 released by Clarion Project earlier this year state that MOA is was linked to al-Qaeda in Pakistan at that time.

Read the full story at Clarion Project.