LITTLE ROCK, Ark. (AP) — Authorities have arrested two more juveniles in an investigation over online threats that prompted the two-day closure of a central Arkansas high school last week.

So far, a total of six minors have been arrested in connection with the threats made against Sylvan Hills High School in Sherwood, the Arkansas Democrat-Gazette reported. The Pulaski County Special School District closed the Sylvan Hills High School main campus on Feb. 12 and Feb. 13 after online threats emerged.

A spokeswoman for the school district confirmed that the two people arrested over the weekend are from Arkansas, but would not say if they are Sylvan Hills students.

Authorities have not released information about those arrested because they are juveniles.