The Department of Homeland Security’s (DHS) inspector general will reportedly examine whether the department is separating the children of asylum seekers from their parents while in immigration custody.

CNN reported that Sen. Dick Durbin Richard (Dick) Joseph DurbinTumultuous court battle upends fight for Senate McConnell focuses on confirming judicial nominees with COVID-19 talks stalled Senate Republicans signal openness to working with Biden MORE (D-Ill.) and other Democratic senators recently asked the inspector general to investigate following reports that immigrant children were split up from their parents while in custody.

DHS Secretary Kirstjen Nielsen Kirstjen Michele NielsenDHS IG won't investigate after watchdog said Wolf, Cuccinelli appointments violated law Appeals court sides with Trump over drawdown of immigrant protections Democrats smell blood with new DHS whistleblower complaint MORE testified last week that the department only separates children from their parents “in the interest of the child.”

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The inspector general said his office would “conduct a review of this matter,” CNN reported.

The American Civil Liberties Union sued the Trump administration in February, alleging that officials were targeting immigrant families seeking asylum.

The case focused on allegations that a Congolese woman was being held in a facility in San Diego while her 7-year-old daughter was held in a facility in Chicago. The two were later reunited.

Thomas Homan, acting director of Immigration and Customs Enforcement, told The Associated Press in January that there have been separations in some cases.

He added that while many asylum seekers are trying to escape dangerous situations, others are "taking advantage of a low threshold."

The Trump administration has made cracking down on immigration a key focus following the president's campaign promises.