Utah health officials say a person infected with Zika has died, and while the exact cause is unclear, it marks the first death related to the virus in the continental U.S.
Authorities said Friday that the unidentified Salt Lake County resident traveled abroad to an area with a Zika outbreak.
The Salt Lake County Health Department says the elderly person who died in late June also had another health condition. They declined to release more information.
The virus causes only a mild illness, at worst, in most people, but infection during pregnancy can lead to severe birth defects. It's spread mainly through the bite of a tropical mosquito.
The Centers for Disease Control says no cases of locally transmitted, mosquito-borne have been reported in the continental United States.