The man suspected of carrying out an "act of terrorism" on a pedestrian mall in Boulder, Colorado, is in the United States ...

Influencer and former collegiate gymnast Olivia Dunne, who goes by Livvy, is sharing the details of what she calls "hostile" ...

Police in Colorado are responding to a "heinous" attack at a pedestrian mall in the city that they say left several victims.

Jonathan Joss, known for his roles in "King of the Hill" and " Parks and Recreation ," has died following a fatal shooting, ...

As hundreds of wildfires continue to burn in Canada, the smoke from the flames is bringing potentially dangerous air quality to parts of the United States.

Most U.S. counties have seen a decline in measles, mumps and rubella (MMR) vaccination rates over the last five years, according to a new report published Monday.

The White House's efforts to foster an agreement between Russia and Ukraine are also expected to continue this week, with a ...

Russia’s Defense Ministry in a statement confirmed the attacks, saying they damaged aircraft and sparked fires on air bases ...

The Supreme Court turned away an appeal by a group of gun-rights advocates seeking to overturn Maryland's ban on AR-15 ...

Brian Horowitz, a Denver resident, recounts how he saw the Boulder attack suspect shouting at protestors before he allegedly threw Molotov cocktails, injuring 12 people.

ABC News’ Juju Changs sits down with Grammy-nominated singer and comedian Randy Rainbow to discuss his new children’s book, ...

A Nevada woman was arrested for the death of her dog, which she allegedly kept outside in the extreme heat, police said.