A former school aide for Charles County Public Schools, who was arrested for allegedly assaulting at least seven male students, also coached at a track club within the past month, a witness told WUSA9 reporter Scott Broom. He was let go from the school district in December 2016.

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According to a witness, 30-year-old Carlos D. Bell was coaching for the Comets of Charles County Track Club within past month. Investigators are conducting interviews.

In 2008, he worked for the Charles County as a facilities attendant. In 2015, he worked at JP Ryon and William Wade Elementary School in aftercare.

Bell told investigators he was HIV positive.

According to the sheriff’s office, an investigation began in December after a high school student’s parent raised concerns about “electronic messages” from Bell to her child.

Bell, who was an instructional assistant at Benjamin Stoddert Middle School and also the head indoor track coach at La Plata High School, was immediately removed from the school and barred from coaching.

Bell is currently being held at the Charles County Detention Center with no bond.

Officials say additional charges are forthcoming.

Investigators believe that there could be additional victims. They are asking anyone whose child may have had contact with Bell to talk with their children about this matter.