CHILLICOTHE (AP) — Authorities say search teams are combing the land in southern Ohio where the body of a missing woman was found over the weekend.

Ross County Sheriff George Lavender on Monday said teams from multiple agencies were searching on land and by air for any other bodies and evidence after the body of 26-year-old Tiffany Sayre was found in rural Highland County on Saturday. She had been missing since May 8.

Authorities haven’t said how she died.

That brings to four the number of women who have been found dead from the Chillicothe area since May of last year. Two other women remain missing.

Investigators don’t know if the cases are connected. One death was a homicide, another was ruled a suicide and the other was an overdose authorities called suspicious.