(KMOV) A pickup truck armed witha homemade cannon is used to launch packages of pot across the US border with Mexico.

Mexican authorities discovered the cannon just south of the California state line. They say that the cannon is powered by a compressor.

Investigators say this is not the first time drug smugglers have turned to something like this. Late last year, dozenss of canisters of pot were found in a field in Arizona, assumed to be shot across from Mexico.

A border patrol video shows smugglers catapulting drugs over the border. And, in another video, smugglers try to build a ramp and drive over the border. It didn't work out very well.

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