Nothing suspicious found at evacuated Missouri high school

KANSAS CITY, Mo. (AP) -- Authorities have found nothing suspicious after searching a Kansas City-area high school where threats forced evacuations.

The Clay County Sheriff's Department said Monday afternoon in a tweet that all roads also have been reopened.

As a precaution, authorities evacuated nearly 1,500 students and 130 staff member from Oak Park High School and took them in buses to another school.

Police have detained four to five students. Clay County Sheriff's Department spokesman Jon Bazzano says one student was tackled during the evacuation when he bolted. The student injured his arm during the process. It was unclear if the student's escape attempt was related to the threats.