INDIANAPOLIS Authorities say no credible evidence was found after threats of violence were made to two central Indiana high schools on Friday.Avon High SchoolAccording to an alert from Avon High School, the school was placed on a lock down around 2:14 p.m.Officials said the lock down was lifted and the school campus is currently under a "secure the building" status after an anonymous call. The alert said the call referenced threats outside of the building, and the interior of the school was not threatened.A sweep of both the interior and exterior of the school found no threats.All students are safe, and they will remain in classrooms until early dismissal, officials said.Traffic is currently being blocked from entering the campus until an investigation is completed.The Avon School Police Department said the incident will now be investigated by Federal authorities.Zionsville High SchoolThere were also reports of a police presence at Zionsville High School on Friday.According to Superintendent Dr. Rebecca Coffman, a call indicating a bomb threat was received around 2 p.m.Law enforcement immediately responded to assess the threat and found it to be non-credible.All students were reported to be safe. Students will be released following normal protocols this afternoon.An investigation is ongoing, Zionsville PD told WRTV.WRTV's Tim Spears contributed to this report. ...read more read less