RCMP in B.C. say they've taken down "the largest, most sophisticated drug superlab in Canada," and revealed their haul at a news conference in Surrey on Thursday afternoon (Oct. 31).

Investigators say the bust is a result of "significant enforcement actions on a transnational organized-crime group believed to be involved in the mass-production and distribution of fentanyl and methamphetamine across Canada, and internationally."

Last weekend, guns and drugs were seized in Surrey and at a large lab located in the Shuswap-area town of Falkland, B.C., police said during a news conference at BC RCMP Divisional Headquarters in Surrey.

Photos of the bust are .

Close to a half-ton of hard drugs were seized, including 54 kilograms of fentanyl, massive amounts of precursor chemicals, 390 kilograms of methamphetamine, 35 kilograms of cocaine, 15 kilograms of MDMA, and six kilograms of cannabis, along with 89 firearms including 45 handguns, 21 Ar-15-style rifles and submachine guns, "many if which were loaded and ready for use," police say.

"The combined fentanyl and precursors seized at this facility could have amounted to over 95,500,000 potentially lethal doses of fentanyl, which have been prevented from entering our communities, or exported abroad," according to .

One person has been arrested, and investigators say more arrests could be made.

Surrey Mayor Brenda Locke told the Now-Leader she was made aware of this and added, "I'm grateful for the good work of the RCMP in our city."

More to come on this story.