The Mexican army has announced that it seized 15 tons of pure methamphetamine in Jalisco, Mexico on Wednesday. To give you an idea of the scale, that's worth around $4 billion and is twice the entire amount of meth seized at the Mexican border last year. After receiving several anonymous tips, Mexican troops raided a ranch just outside of Guadalajara and found their prize. No one was present at the ranch and no arrests have yet been made. Authorities believe the giant stash belonged to the Sinaloa cartel. It's believed that a seizure of this scale will have a huge impact on the meth market in the US, where a pound of the drug can be sold for around $15,000. "This could potentially put a huge dent in the supply chain in the US," says DEA spokesman Rusty Payne. "When we're taking this much out of the supply chain, it's a huge deal." The production of meth has been growing in Mexico, and over the last few months officials have continued to seized huge amounts of the drug across the country. According to the National Drug Intelligence Center, 80% of meth seized while being smuggled into the US is taken at the Mexican Border. But this week's haul dwarfs even those quantities.