Simon & Schuster Thursday addressed the status of Minnesota author Vince Flynn's final book, "The Survivor."
In a statement posted on Flynn's Facebook page, the publishing house said the book, which was planned for a release in the fall, has been "postponed indefinitely."
"The reason it is 'postponed indefinitely' as opposed to 'canceled' is because it is too soon to know how much of the book was written or if Vince had plans or provisions in place in the event he could not complete the book," the statement read.
Flynn died June 19 at age 47. The author disclosed in a fan letter on his website in February 2011 that he was diagnosed with Stage III metastatic prostate cancer.
An estimated 2,700 mourners attended Flynn's funeral, which was held at the Cathedral of St. Paul.
"The Survivor" is Flynn's 15th espionage novel. Many of the St. Paul-born author's first 14 novels -- many of them best-sellers -- centered on the character of CIA agent and counterterrorism operative Mitch Rapp.
Simon & Schuster also noted in the statement that an untitled collaboration with fellow best-selling author Brian Haig is also on hold, but remains on preorder.
The book was scheduled to be published May 6, 2014.
Flynn first novel, "Term Limits," was self-published in 1997 and later picked up by Pocket Books.
Flynn went on to sell more than 58 million copies of his 14 books.