HOUSTON, Texas (KTRK) -- A gun was pulled out during a confrontation at KIPP Mosaic Academy on Thursday morning, the Houston Police Department confirmed.

HPD said they got a call about a suspicious person at the school after 7 a.m., and just minutes after, a second call about someone who was threatened and had a gun pulled on them was reported.

In a letter to families later that day, KIPP said the incident was an altercation between a parent and someone unaffiliated with the school.