GUATEMALA CITY — New Mexico authorities said an autopsy performed on the 8-year-old Guatemalan boy who died in US custody shows he had the flu.

The New Mexico Office of the Medical Investigator said in a statement late Thursday that more tests need to be done before a cause of death can be determined for Felipe Gomez Alonzo.

Authorities say Felipe died at a New Mexico hospital after suffering coughing, vomiting and a fever. Another Guatemalan child, 7-year-old Jakelin Caal, died in US custody on Dec. 8. Both deaths are under investigation.