Deputies in Mississippi arrested two women Monday night on suspicion of drug trafficking after authorities said they found 51 pounds of heroin and a 3-month-old child in an SUV the women were driving.

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A deputy pulled over a Ford SUV on Interstate 20 in Rankin County on Monday night for an unspecified traffic violation. Authorities said that during the stop, the deputy became suspicious that the SUV was being used to transport drugs or contraband.

Deputies said the women in the vehicle, driver Arlene Viridiana Moya, 23, and passenger Trisha Lynne Ibarra, 23, allowed authorities to search the SUV. Inside, deputies said they found 51 pounds of heroin concealed in the vehicle.

Deputies in Rankin County, Mississippi, arrested 23-year-old Arlene Viridiana Moya, left, and 23-year-old Trisha Lynne Ibarra, right, on suspicion of drug trafficking on Monday, Jan. 22, 2018.

Credit: Rankin County Sheriff's Office

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Credit: Rankin County Sheriff's Office

Deputies estimated the drugs were worth between $2 million and $10 million.

Authorities also found Ibarra’s 3-month-old child in the SUV, deputies said. Rankin County Court Judge Tom Broome ordered the toddler be taken into the custody of Child Protective Services.

Moya, of Nuevo Laredo, Mexico, and Ibarra, of Laredo, Texas, were arrested on charges of aggravated trafficking of heroin.

Authorities continue to investigate the case.