Mbalula said the teen was linked to an intimidation case in Gauteng‚ which was opened by communications minister Ayanda Dloldlo.
Evidence was also present that the teenager had also threatened Bathebile Dlamini.
Mbalula added that their investigation revealed that the teen had links to the Democratic Alliance.
"This is through items she posted on social media. We do not have any official proof of an official DA membership."
Mbalula said the girl was arrested on August 2 and appeared in court in Johannesburg before being released into the care of her parents.