UPDATED | March 8, 2017 3:25 PM

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CARROLLTON (CBSDFW.COM) – R.L. Turner High School teacher George Edwin Thomas III has been arrested and charged with six counts of invasive visual recording, a state jail felony.

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Carrollton Police said Thomas, 54, used concealed recording devices to get video of girls at school “in various stages of undress” without their knowledge during the 2015-2016 school year.

Detectives identified six students who Thomas recorded while on the R.L. Turner campus.

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The investigation is ongoing.

The school district has put Thomas on administrative leave and released the following statement:

On Wednesday, February 22, 2017, officials with the Carrollton-Farmers Branch ISD were made aware of allegations of inappropriate conduct by a teacher at R. L. Turner High School.

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The district placed the teacher on administrative leave and is cooperating fully with all local and state authorities.