Five men and women were arrested in Manitowoc for a suspected heroin distribution ring.

According to the Manitowoc County Metro Drug Unit, they were dealing heroin from Rockford, Ill., to Manitowoc:

Myron Pieschel, 59

Tammy Pieschel, 48

Darryl Reynolds, 58

Claurice Smith, 47

Jeffrey Truettner, 50

Investigators say they purchased heroin from the suspects a number of times at two homes in Manitowoc, on Ray St. and S. 21st St., over a four-month period.

Investigators believe one suspect, a 58-year-old man, was selling $135,000 to $200,000 in heroin a year.

Police made arrests after a controlled buy of $2,500 worth of heroin on Wednesday, which led to a short car chase down S. 21st St. with two of the suspects. Police found more heroin and also cocaine in their car.

All five are being held in the Manitowoc County Jail. Investigators expect they'll face charges of conspiracy to deliver heroin, possession of cocaine, and possession of methamphetamine.

The Metro Drug Unit says it expects to make more arrests through its investigation of this heroin ring.