OTTAWA -- Eight people face more than 100 charges after a joint-forces investigation into the trafficking of firearms and cocaine in eastern Ontario.

Police say "Project Harden" was conducted over five months by members of the OPP, the RCMP, Border Services, Quebec provincial police and officers from Ottawa, Cornwall and the Akwesasne Mohawk service.

It focused on the illegal gun trade, particularly handguns.

Investigators say they carried out six search warrants on Wednesday in Cornwall, Ottawa, South Glengarry Township, Akwesasne and Longueuil, Que., and seized a cache of weapons the included six handguns, an AK-47 assault rifle, ammunition, cocaine and marijuana.

Several firearms seized in the investigation were traced back to the United States.

Pierre Nassif, Paul Nassif, Devin Lazore, Masaed Rashed, Hussein Yassin, Sean Carl, Francois Billard, and Sonia Bernier each face multiple charges. None of the allegations have been proven in court.