The Transportation Security Administration says officers found two throwing daggers hidden in a hollowed-out book at a checkpoint at Reagan-Washington National Airport.
A TSA spokesman says a passenger was stopped Monday when officers found the knives in the person's carry-on bag. The daggers measured just over a half-foot long and were hidden in the hard-cover book.
The passenger was flying to Chicago and surrendered the knives and book.
The TSA has the authority to fine passengers who bring deadly weapons into the airport checkpoint. It was not known if this was done in this case.
A spokesman for the airport did not immediately return a call for comment.