The Minneapolis, Minn., Star Tribune became the latest of several news organizations to receive an "anthrax" package on Thursday, despite Wednesday's arrest of a leading suspect.
Marc Keyser, who was responsible for more than 120 anthrax hoax letters, was taken into custody Wednesday at his home in Sacramento, Calif., according to the Associated Press.
The package, labeled as anthrax, included a compact disc with a picture of former Secretary of State Colin Powell, the AP reported.
It is possible the package is a part of a larger hoax, with several other news organizations and television stations receiving similar threats, FBI spokesperson E.K. Wilson told the AP on Friday. None of the packages, which appear to have originated in Sacramento, have tested positive, the AP reported.
More packages are expected to arrive in the upcoming week, according to the AP.
-M.M.
