Police who seized heavy weapons during a recent drug raid say that Mohawk Indian territory is being used to smuggle drugs south into the U.S., the Canadian Press reported March 27.

Three grenade launchers and several assault rifles were seized by police investigating drug smuggling in and around Mohawk territory and Montreal, including the Quebec communities of Akwesasne, Kahnawake, and Kanesetake.

The drugs were reportedly grown in the Chateauguay and Mascouche regions near Montreal.