U.S. Postal Service has been investigating whether a western Pennsylvania carrier has been refusing to deliver "junk" mail.
WTAE-TV reports the carrier may not have delivered such mail to residents on his route for about two months.
The U.S. Postal Service Office of Inspector General says investigators recovered 500 pieces of the mail -- mostly catalogs and advertising circulars -- that weren't delivered Tuesday.
Investigators believe they know who is responsible, but aren't identifying the carrier in question. The Postal Service says that worker will be dealt with appropriately at a later date.
Investigators don't believe the carrier was stealing or tampering with the mail, just not delivering it.