An Indiana missing persons case has now evolved into a murder investigation.

Indiana state police say 23 year-old Ashley Robinson of Hanover was murdered. Police also say she was pregnant. Robinson was reported missing by her family on February 12^th.

Police have arrested five people on preliminary charges of murder and conspiracy to commit murder.

Investigators say they know approximately where Robinson’s body is located, but will not release any details. They hope to begin searching for the body tomorrow.

There is no word on a motive in the case.