SUMMIT, Ill. (WLS) -- Tuesday night's graduation ceremony at Argo Community High School in southwest suburban Summit has been postponed after two threats against the school were made on social media.

June 21 was graduation night for members of Leadership Summit – 12 community leaders and Summit County residents who successfully completed 64 hours of session time over the past eight months.

Summit School District continues to be one of the more successful districts in the state, maintaining a graduation rate significantly above state average while also keeping a very low dropout rate.