SANTA ROSA – More arrests are possible in a Santa Rosa sexual assault investigation.

Two former district employees are behind bars; both are accused of having improper relationships with students.

The employees accused in this case are Josue Cepeda and Isaac Flores.

Cameron County District Attorney's investigators say enough wasn't done by the district to address this case when it surfaced a year ago.

DA investigators say the incidents were first reported to Santa Rosa Independent School District officials in May 2018.

Investigators allege nothing was done and law enforcement was not notified.

In Feb. 2019, a tip came in to the Homeland Security Investigations Child Exploitation Task Force, which prompted the investigation into Flores and Cepeda.

On Tuesday, each is charged with one count of improper relationship.

Cepeda is charged with six counts of sexual assault.

Flores faces two counts of sexual assault and four counts of delivery of a controlled substance or marijuana.

Both men remain in custody.

Santa Rosa ISD rebuffs what the DA said regarding not taking immediate action.

It reads:

"As soon as this issue was brought to the district's attention, the administration took immediate action to ensure the safety of its students."

It goes on to say they are cooperating with the investigation and have filed corresponding reports with the state.