Missing doctor who lived near Twin Towers officially died on 9/11, but sleuths suspect she was killed earlier

Dr. Sneha Anne Philip was last seen on Sept. 10, 2001. The true-crime community is digging into this decades-old NYC mystery, reigniting a debate on her disappearance after her remains were never found.

Daughter of FDNY hero killed on 9/11 believes dad speaks to her with haunting 'pennies from heaven'

Tillie Geidel Conklin, the daughter of New York City firefighter Gary Geidel, who was killed on 9/11, believes her dad still speaks to her by leaving pennies for her with haunting frequency.

Patriot Day: Watch Sept. 11 live coverage from across the country

Thousands were killed that day when a series of hijacked planes were flown into the World Trade Center, the Pentagon and an open field in Pennsylvania.

Central Florida firefighters mark 9/11 with stair climb

Firefighters from across Central Florida gathered Sunday morning to honor the lives lost on September 11, 2001, 21 years ago. 

Americans remember 9/11 with tear-choked tributes, pleas to 'never forget'

More than two decades later, Sept. 11 remains a point for reflection on the attack that reconfigured national security policy and spurred a U.S. “war on terror” worldwide.

Afghans protest US order freeing up $3.5B in assets for 9/11 victims

Demonstrators in Kabul condemned Biden’s order freeing up $3.5B in Afghan assets held in the U.S. for families of America’s 9/11 victims — saying the money belongs to Afghans.

9/11 documents: FBI releases hundreds of newly declassified pages

The FBI has released hundreds of pages of newly declassified documents about its long effort to explore connections between the Saudi government and the Sept. 11 attacks.

Prince Harry and Meghan visit World Trade Center, Sept. 11 memorial

Prince Harry and Meghan, the Duke and Duchess of Sussex, got a hawk's-eye view of New York City from the observation deck at the World Trade Center.

Student under investigation for removing nearly 3,000 US flags from 9/11 display on college campus

Washington University is investigating a member of their student government, who was caught on camera removing 2,977 flags from a 9/11 display on campus and throwing them in trash bags. The student said he did it as a form of protest.

9/11 Ride of Hope cyclist hopes first responders get the help they need

As Americans commemorate the 20th anniversary of the Sept. 11, 2001, terrorist attacks, a group of cyclists will be wrapping up their five-day, 225-mile journey raising awareness of the compounded daily trauma experienced by first responders.

From ground zero to Pentagon to Shanksville, US marks 20th anniversary of 9/11

Twenty years ago, the 11th of September dawned as just a date. By midnight, it was 9/11, the staggering starting point for a new era of terror, war, politics, patriotism and tragedy.