PHOENIX -- Dozens of large cans packed full of marijuana were uncovered by U.S. Border Patrol agents near Yuma Friday.
Agents say the cans, each weighing 2 pounds, were launched over the fence using a cannon.
It's the latest example of drug smugglers using creative tactics to deliver their contraband.
In the last year, catapults, cranes, and ramps designed to get vehicles over the fence have all been found.
"You know, as we continue to tighten the border more and more, they'll find every method they can explore to get their drug loads over," said Agent K. Linwood Estes of the Border Patrol.
Former DEA official Douglas Hebert said smugglers are looking for low-cost, low-risk methods. Using a cannon to launch drugs over eliminates having to go through a border checkpoint.
"When you have contraband, poverty and desperation and time, you're going to come up with innovative techniques to get drugs across the border," Hebert said.
The 33 cans of pot found near Yuma Friday were worth more than $40,000.