The U.S Department of Justice says 19 people in the Milwaukee area have been arrested in connection with a conspiracy to sell cocaine, heroin, and methamphetamine.

Officials say the case is part of a long-term federal drug and money laundering investigation.

The DOJ says law enforcement recovered about one and half kilos of heroin, 2 kilos of cocaine, 50 pounds of marijuana, 12 firearms and one assault rifle, $1.3 million in cash and drug paraphernalia.

The defendants are charged with drug offenses including distribution of and possession with intent to distribute controlled substances and conspiracy.

The suspects could face up to life in prison if the offences involved more than kilogram of heroin, or five kilograms or more of cocaine.