A Colorado woman reportedly aiding Islamist rebels in Syria and Iraq reached a plea deal with the federal district attorney on Monday.

Shannon Maureen Conley, 19, has been in custody following her arrest in April for allegedly providing support to the Sunni Muslim militant group Islamic State of Iraq and the Levant, otherwise known as ISIS or ISIL.

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Defense lawyers filed a "notice of disposition" on the case at the federal court of Denver on Friday.

In a statement released by Jeff Dorschner, spokesman of U.S. Attorney John Walsh, he said that a notice of disposition is filed by the defendant's lawyers as a way of informing the prosecution that the defendant has agreed to plead guilty.

Information on the plea have not been released and the date of the hearing will have to be moved to a later date, Dorscher said.

Conley was apprehended at Denver International Airport before boarding a plane headed to Germany.

The criminal complaint filed in the U.S. district court stated that Conley had been communicating with the Islamists as well as providing material support for the "terrorist group."

Investigations done by the FBI terrorism task group and federal agents uncovered evidences of Conley's messages to an alleged Tunisian Sunni Islamists who she allegedly planned on marrying. According to reports, she met the man online and communicated with him via Skype.

Conley is a former nursing aide who believes that through war the Muslim world will be amended, according to Reuters.

In Conley's sworn statement, she said that if she were not allowed to join the actual war, she would provide aid to the extremists using her medical training.

The FBI began investigating the young woman in 2013 after a Christian pastor called to say that he had spotted her taking notes at his church.

TagsISIS, shannon conley, colorado woman aids ISIS, Colorado woman helps extremists