An investigation is underway into a possible threat against Hartford High School students. On Facebook, the high school said they were called by Hartford police a little after 5 p.m. Monday to be told someone was headed to the school with plans to harm either himself or students. The district was locked down, with all athletic teams, the band, and middle school students sheltering in place with the doors locked. The suspect was questioned by Hartford police, but no arrest was made. No other information has been released about that person. Everyone was safe, and the lockdown was lifted after the arrest. WSJM News has reached out to the Hartford Police Department for more information.