Inquiries into a suspected murder have uncovered a far north Queensland drug ring, leading to the arrests of 25 people, police say.
A 10-month investigation came to a head when officers raided 10 properties across the Cassowary Coast region, south of Cairns, on Wednesday.
The group faces 117 charges in total, with one man facing 45 charges.
Police will allege that they found 180 grams of methamphetamine, 40g of ecstasy, a kilo of cannabis, 84 cannabis plants and a quantity of steroids during the raids.
They also seized more than $40,000 in cash, five rifles, a pistol, knives, a knuckle-duster and five vehicles.
Four of those arrested will appear in the Cairns Magistrates Court on Thursday and the others will face court later this month.
A police spokesman told AAP that officers uncovered the alleged drug ring during an investigation into the disappearance of local woman Leeann Lapham.
The 30-year-old was last seen at the Riverside Motel in Innisfail in April 2010 and police believe she was murdered.
Her son was three weeks old at the time.
No arrests have been made in connection with her disappearance.