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

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

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

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

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

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

A Phoenix woman will be going to prison for more than a decade after her baby died from a fentanyl overdose, the Maricopa ...

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

The Drug Enforcement Administration field office in Phoenix is showcasing its unique mobile drug testing unit, designed to ...

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 ...