GREENWOOD — Four arrests following a search warrant concluded a two month drug investigation Thursday, Delaware State Police spokeswoman Master Cpl. Melissa Jaffe said.

Demond L. Anderson, 27, Karen A. Clineff, 55, Steven R. Keely, 35, and Steven Keely, 58, were all charged. All live in a home in the 6200 block of Hickman Road and were taken into custody without incident, authorities said.

The search warrant located approximately 2,175 bags of heroin, approximately 15.225 grams, approximately 4.5 grams of cocaine, approximately 1.58 grams of crystal meth, approximately 9.34 grams of marijuana, approximately 15 Oxycodone pills, one dosage unit of MDMA, 24 guns (including six handguns, one assault rifle and 17 assorted long guns), and more than $1,400 in suspected drug proceeds.

Mr. Anderson and Steven R. Keely were committed to Sussex Correctional Institution on $70,500 secured bond and Steven C. Keely was held on $73,000 secured bond.

Ms. Clineff was committed to Delores J. Baylor Women’s Correctional Institution on $73,000 secured bond.