Monica Crowley. Drew Angerer/Getty Images

President-elect Donald Trump's pick for director of communications at the National Security Council, GOP foreign policy adviser Monica Crowley, "will not be taking a position in the incoming administration," she said in a statement on Monday.

"After much reflection, I have decided to remain in New York to pursue other opportunities and will not be taking a position in the incoming administration," she said in a statement first obtained by The Washington Times.

"I greatly appreciate being asked to be part of President-elect Trump's team, and I will continue to enthusiastically support him and his agenda for American renewal," she said.

Crowley's announcement came amid reports published by Politico and CNN that she appeared to have plagiarized full sections of her doctoral dissertation in 2000 and her 2012 book, "What The (Bleep) Just Happened?"

Crowley was a Fox News contributor until she was tapped by Trump to be the director of strategic communications for the National Security Council. She would have worked with Trump's national security adviser, retired Gen. Michael Flynn.

"The NSC will miss the opportunity to have Monica Crowley as part of our team," Flynn said in a statement. "We wish her all the best in her future."

An investigation by CNN's KFile published earlier this month revealed more than 50 places in Crowley's 2012 New York Times best-seller that appear to have been lifted verbatim from a variety of columnists, think tanks, and Wikipedia.

Crowley's history of plagiarism accusations dates back several years, according to Slate. The publication points to an editorial feature Crowley wrote for The Wall Street Journal in 1999 that was found to have "striking similarities in phraseology" to a 1988 article by Paul Johnson in Commentary magazine, The Journal said in an editorial note.

Chris Sanchez contributed to this report.