7-year-old Guatemalan migrant Jakelin Caal died on Dec.
8 after being detained by U.S. border patrol agents in New Mexico.
Now, immigrant rights groups are calling for a swift and thorough investigation into her death.
U.S. officials said Jakelin suffered cardiac arrest, brain swelling and liver failure.
Jakelin Caal died in an El Paso, Texas hospital two days AFTER she and her father were detained in a remote part of New Mexico.
Her father, Nery Caal, said she had no preexisting medical conditions.
Executive director of the Annunciation House refuge for migrants, Ruben Garcia, is working with the Guatemalan consulate to repatriate the body back to Guatemala.
(SOUNDBITE) (English) RUBEN GARCIA, EXECUTIVE DIRECTOR OF ANNUNCIATION HOUSE, SAYING: "It's one of those situations that I can't imagine.
I can't imagine what it must be like to come up, and then find yourself dealing with the loss of your child." The Office of the Inspector General, which looks into accusations of misconduct by public employees, will take the lead in an investigation into the death, and said they will share the results of its investigation with the public.
Protests against her death have been planned in El Paso.