The Senate Judiciary Committee will hold a hearing on the two migrant children who died in U.S. custody.

Its chairman, Sen. Lindsey Graham Lindsey Olin GrahamGraham: GOP will confirm Trump's Supreme Court nominee before the election Fox's Napolitano: Supreme Court confirmation hearings will be 'World War III of political battles' Grassley, Ernst pledge to 'evaluate' Trump's Supreme Court nominee MORE (R-S.C.), said during a panel meeting on Thursday that the hearing is likely to be set for next month.

Graham did not say who would be testifying before the panel.

"That's going to be set, I think, for March 5," Graham said.

Senate Judiciary Chair Lindsey Graham announces March hearing on deaths of two children in U.S. Border Patrol custody last year. https://t.co/NkJuIoh4fP pic.twitter.com/dDbNx3lXBA — ABC News (@ABC) February 7, 2019

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The deaths of the two children last year sparked outrage, with Democrats pledging to investigate them.

U.S. Customs and Border Protection (CBP) announced in late December that Felipe Gómez Alonzo, an 8-year old Guatemalan boy, had died in its custody after being hospitalized in New Mexico with flu-like symptoms, high fever and vomiting.

A 7-year-old girl, Jakelin Caal Maquin, also died after she was detained along with other migrants who illegally crossed the southern border.

CBP Commissioner Kevin McAleenan at the time called the deaths "absolutely devastating."

"It’s been over a decade since we’ve had a child die anywhere in our processes," McAleenan told ABC's "This Week."