An 8-year-old Guatemalan boy in Customs and Border Protection (CBP) custody has died, the agency said in a news release.

The boy died shortly before midnight Monday after being transferred to the hospital earlier in the day, CBP stated.

ADVERTISEMENT According to the report, the boy's father was with him in the hospital, where he was initially diagnosed with a cold. After doctors discovered a fever, he was kept for observation for 90 minutes, but then released with prescriptions for antibiotics and pain relievers. CBP has ordered medical checks on all children in its custody following the boy's death. The child, whose name was not released, returned to the Gerald Champion Regional Medical Center later that evening with symptoms of nausea and vomiting, where he passed away. CBP says the official cause of death remains unknown and it will conduct an investigation. The unnamed boy is the second child to die in recent weeks in CBP custody. A 7-year-old girl, Jakelin Caal Maquin, The unnamed boy is the second child to die in recent weeks in CBP custody. A 7-year-old girl, Jakelin Caal Maquin, died earlier this month after she and her father were apprehended crossing the U.S.-Mexican border.

Parts of the U.S. government also shut down on Saturday in a fight over funding for Trump's wall on the Mexican border.

"This will not go unanswered," wrote Rep. Lou Correa Jose (Lou) Luis CorreaCriminalization that never should have been: Cannabis Man arrested, charged with threatening to attack Muslims in Germany Gloves come off as Democrats fight for House seat in California MORE (D-Calif.).

Rep. Adriano Espaillat Adriano de Jesus Espaillat CabralLawmakers call for small business aid at all levels of government The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy On the Money: Administration to ban TikTok, WeChat | House moves toward bill to avoid government shutdown | Coronavirus relief bills boosted GDP, CBO says MORE (D-N.Y.) said CBP was unprepared for dealing with medical emergencies. "It is clear #CBP is not trained nor prepared to provide medical or emergency responses to anyone in its custody & especially not to children," he wrote.

Maquin, also a Guatemala national, had begun having seizures roughly eight hours after being taken into custody with her father. Emergency responders measured her temperature at over 105 degrees, according to the Washington Post. She died within 24 hours of arriving at the hospital.

The girl's family and CBP dispute the details of her death. CBP said that she had reportedly not consumed food or water in several days, but denies allegations from her family that it did not provide food or water during the first eight hours they were detained.

The family and CBP also dispute when the girl was showing signs of illness. Rep. Joaquin Castro Joaquin CastroPompeo accused of stumping for Trump ahead of election Florida Democrat asks FBI to investigate anti-Semitic, racist disinformation Hispanic Caucus members embark on 'virtual bus tour' with Biden campaign MORE (D-Texas), one of roughly a dozen Congressional Democrats who visited the site following Maquin's death, said that it was the result of "some very disturbing systematic failures."

Updated on Wednesday at 7:35 a.m.