Video of a U.S. postal truck going off-road and speeding past traffic on the highway in southwest Miami-Dade has gone viral on Facebook.
The video was posted Thursday on the "Only in Dade" Facebook page .
According to reports, the USPS says they are reviewing the video.
"This is clearly unacceptable behavior that does not reflect the efforts of the thousands of professional, dedicated carriers in our workforce," said Debra J. Fetterly of the USPS South Florida District, according to a report by WPTV.
The video has been shared more than 20,000 times in 24 hours.