The U.S. Food and Drug Administration sent warning letters to four top retail stores for failing to promptly pull contaminated infant formula tied to a dangerous outbreak from their shelves.

The makers of ByHeart infant formula say tests of products tied to a botulism outbreak show that all of the company's products may have been contaminated.

As near temperatures climbed to near records in parts of the central United States, a potent storm system was setting up to wallop the nation later.

A winter storm has dumped heavy snow across northern Arizona, playing a major factor in a more than 15-mile backup on a major interstate.

Arizona has added a new species of bat to the list of night-flying creatures that frequent the state.

A northern Arizona man has been convicted of first-degree murder and other crimes in the 2020 starvation death of his 6-year-old son.

Klee Benally, a Navajo man who advocated on behalf of Indigenous people and environmental causes, has died.

The annual weather pattern known as the monsoon has brought a parade of storms to cities across the U.S. Southwest.

The skies over a scattering of Western U.S. cities will stay dark for the third consecutive Fourth of July as some big fireworks displays are canceled again, this time for pandemic-related supply chain or staffing problems, or fire concerns amid dry weather.

Crews battling a pair of wildfires in northern Arizona were expecting some growth Thursday because of warm, dry and breezy weather.

As the summer rainy season known simply as the monsoon started Wednesday, concerns grew for neighborhoods below mountains that have burned repeatedly in northern Arizona.

Fire crews in northern Arizona are getting help from the weather as they work to get a handle on wildfires on the outskirts of Flagstaff.

The northern Arizona city of Flagstaff is synonymous with mountains, lush with ponderosa pines, meadows and hiking trails that are a usual respite from the desert heat.

A federal judge has sided with the Treasury Department in a case that challenged the distribution of coronavirus relief aid to Native American governments.

An Arizona man who stormed the U.S. Capitol on Jan. 6 while wearing a Roman gladiator costume and narrated the melee in videos for his mother has been arrested.

Large swaths of Arizona have been inundated by flooding this week.

FILE - In this Aug. 29, 2009, file photo, Los Angeles Dodgers pitcher Charlie Haeger throws to a Cincinnati Reds batter during a baseball game in Cincinnati. Police have probable cause to arrest 37-year-old Charles Haeger, a former baseball player, on suspicion of murder and aggravated assault in a fatal shooting Friday, Oct. 2, 2020, in a Phoenix suburn, said Sgt. (AP Photo/Al Behrman, File)SCOTTSALE, Ariz. – A former professional baseball player sought in the shooting death of his ex-girlfriend in a Phoenix suburb was found dead Saturday of a self-inflicted gunshot wound at the Grand Canyon, police said. Police were seeking Haeger on suspicion of murder and aggravated assault in the fatal shooting Friday, Hoster said. Responding police found the victim dead in her bedroom, Hoster said.

The “Horseracing Integrity and Safety Act” comes after a series of doping scandals and a rash of horse fatalities in recent years. "Horse racing has long been woven into the fabric of American culture,'' Tonko said during House debate, citing storied names such as Secretariat and Man o' War that “stir the imagination of racing fans” around the world. The House bill would empower an independent Horseracing Integrity and Safety Authority to set uniform, national standards for medication, track safety and testing of horses for performance-enhancing drugs, or PEDs. The legislation is supported by a range of groups, including The Jockey Club, the New York Racing Association and the Humane Society of the United States. “Horse racing is experiencing the most profound crisis in the long history of the sport.