TROY, Ohio (AP) — Three western Ohio teens have been accused of inducing panic by leaving written threats at their schools.

The Dayton Daily News (http://bit.ly/WcT6n1 ) reports that the boys — ages 13, 14 and 15 — are being held in a juvenile detention facility following an initial court appearance Thursday in Miami County.

Police said the 14-year-old is accused of writing a threatening note on a table this week at Tippecanoe Middle School in Tipp City, north of Dayton. The 15-year-old accused of writing a threat on toilet paper at Tippecanoe High School.

The 13-year-old is accused of leaving a threatening message in a boys' restroom at Troy Junior High School Wednesday.

A series of threatening notes left during the past week at the schools has unsettled school officials and police.

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Information from: Dayton Daily News, http://www.daytondailynews.com