When a Texas trooper pulled over a tanker during a routine traffic stop earlier this week they could scarcely have expected what they found.
What began as a routine vehicle inspection ended as a major drugs bust when 3.9 tons of marijuana were found concealed inside the tanker rig.
The marijuana, which has an estimated street value of $3.4 million, was discovered by a trooper in San Patricio County, Texas, on Tuesday.
The Texas Department of Public Safety trooper had stopped the 1999 truck for a routine cargo inspection.
The driver of the vehicle, Paul Anthony Simmons, 45, was subseqeuntly arrested for possession of marijuana and a $1million bail was posted.
Mr Simmons is from nearby Robstown, outside of Corpus Christi.
"It's a big, significant seizure," a Texas Department of Public Safety spokesman said.