According to reports, a drug bust in Burien, Washington has yieled $10 million worth of drugs including 400 pounds of meth, nearly 500,000 fentanyl pills, among other narcotics. 

Authorities arrested six men in connection with the massive cartel ring on Dec 21. 

"It is obviously a moment of pride," said Todd Morrell, the interim chief for the Burien Police Department. "We’re very proud of the work. I think the team would agree that this is one step in a much larger problem."

"King County Sheriff's Office has been around as you know, since 1852. So we can't throw those claims out," said Morrell. "But the general consensus is if this is not the largest, it is among the very, very top," 

In total, authorities seized: 

478,000 M30 fentanyl pills, of which 5,000 were rainbow fentanyl
400 pounds of meth
25 pounds of fentanyl powder
31 pounds of heroin
5 handguns
3 rifles

Source: Q13fox.com