The Downers Grove Police Department have announced the conclusion of a drug investigation that resulted in charges against nine people, seizure of drugs, guns and vehicles.

With the assistance of the DuPage Metropolitan Enforcement Group, police said several Downers Grove residents were arrested in connection with alleged cocaine sales in the village.

Those indicted by a DuPage County Grand Jury and have been charged in the investigation include:

John-Paul S. Burgos, 26, 1160 Valley View Drive, Downers Grove, who was charged with criminal drug conspiracy

Elizabeth Vojtek, 18, 5829 Lee Ave., unincorporated Downers Grove Township, who was charged with  possession of a controlled substance with intent to deliver

Stephen Gaudreau, 24, 8300 S. Lemont Road, unincorporated Downers Grove Township, who was charged with possession of a controlled substance with intent to deliver and possession of a controlled substance

Steven Bernberg, 35, 6313 Wilshire Drive, Downers Grove, who was charged with possession of a controlled substance with intent to deliver and possession of a controlled substance

Marcos Lara, 24, of Stone Park, who was charged with two counts of delivery of a controlled substance and resisting arrest

Gerardo Lara, 23, 5139 W. 22nd Place, Cicero, who was charged with two counts of delivery of a controlled substance

Indicted by a Cook County Grand Jury include:

Cesar Ramirez-Mendez, 25, 5022 W. 24th St., Cicero, who was charged with  unlawful delivery of a controlled substance

Those also arrested during the course of the investigation include:

Jacquelyn Burgos, 24, 1160 Valley View Drive, Downers Grove, who was charged with possession of marijuana

Julianna Del-Percio, 18, 1113 Saylor St., Downers Grove, who was charged with possession of drug paraphernalia

Downers Grove police said in August 2008 the department and the DUMEG initiated their investigation. The U. S. Drug Enforcement Administration and the Illinois State Police Narcotics and Currency Interdiction Team also assisted in the case.

Police said the investigation led to obtaining search warrants in Cicero and Stone Park.

From those search warrant, police said agents seized over 21 ounces of cocaine with an estimated street value of $61,000, three guns, two cars and about $4,500.