Noah Ayala died of a fentanyl overdose the first time he tried drugs, but the teen who sold him pills was never charged. That ...

Natalie Vanessa Tate had woken up to find her pill container opened and then the next day discovered her child unresponsive.

A Phoenix mom was sentenced to 12.5 years in prison after her 1-year-old son died from a fentanyl overdose last year.

Authorities found 70 pounds of fentanyl hidden inside boxes of slices of cactus, a Mexican food stable known as nopales.

Gov. Katie Hobbs' order expands border security operations in four border counties, Yuma, Pima, Santa Cruz and Cochise.

Mexican law enforcement said they seized some 275,000 pills of the lethal drug in the border state of Sonora, on its way to ...

A former Arizona man caught shipping fentanyl pills to a person in Lincoln was sentenced to prison on Thursday.

MEXICO CITY (AP) — Authorities in northern Mexico on Wednesday found 32 kilograms of fentanyl hidden inside ... on its way to Arizona, and that they arrested a 29-year-old man.

Top Arizona Democrats and Donald Trump want less fentanyl coming into the state but they differ on how to accomplish that ...

Troops in Nogales, Mexico, have found 150 fentanyl pills, according to official statistics. Meanwhile, U.S. officials across ...

Marcus Richardson, 25, got six years in federal prison with a three-year term of supervised release for conspiracy to money ...

Here's everything we know The Arizona Republic reported shortly after the toddler's death that police said Tate told them the fentanyl caused her to fall asleep and that she suspected her youngest ...