Police said they received a call about the threats on Tuesday.
Two young girls said they had been allegedly threatened by the 12-year-old over an ongoing dispute.
Police have not released any details of the dispute or what was said on the social media site, but they did say the teen had threatened to harm the other girls.
After an investigation the teen was arrested Friday.
She is scheduled to appear in Brandon courtroom on Feb. 19.Suggest a correction