Editor's Note: This was one of several stories posted by WTOL.COM on September 11, 2001.
UNDATED (AP) -- Planes have crashed into several U.S. sites, including the World Trade Center in New York City, the Pentagon, and a farm field in Pennsylvania. "The two explosions were incredible and at the point of explosions all you could see outside were personal belongings and office supplies raining outside," said Bob Rendine, an American Stock Exchange spokesman, whose office is down the block from the NYSE. "We're staying here. We think it's safer to stay inside then go outside at this point."
Planes were grounded nationwide after the report that there may be more hijackings. "We're like everyone else, in shock," said Carol Windham, a spokeswoman at Birmingham International Airport in Alabama.
Heightened security went into effect at government and corporate offices nationwide, from the Army's main germ warfare defense laboratory in Frederick, Md., to city offices in Colorado. "I don't think there's any place in America right now that's not at risk," said Andrew Hudson, a city spokesman in Denver, where emergency preparedness officials gathered in the basement of City Hall.
In Philadelphia, dozens of people gathered in a hotel lounge to watch television coverage. A visitor from Texas wept. "I can't believe what I'm seeing. I never thought I would see anything like this in my lifetime," said 20-year-old Beverly Evans of Dallas. "How can we stop something like this from happening?"
Here's a timeline of today's events:
--Plane crashes into tower of World Trade Center in lower Manhattan, shortly before 9 am Eastern.
--Second plane crashes into the second tower of the World Trade Center, shortly after 9 am Eastern.
--President Bush, in Sarasota, Florida, calls the crashes ``an apparent terrorist attack'' and a ``national tragedy.''
--An aircraft crashes near Pentagon, just outside of Washington DC, in Northern Virginia, about an hour after the attacks in New York.
--Government buildings in Washington, including the Capitol and the White House, are evacuated with officials citing a credible threat of a terrorist attack.
--The Federal Aviation Administration shuts down all aircraft takeoffs nationwide.
--Shortly after 10 am Eastern, one World Trade Center tower in New York collapses, about an hour after being hit by plane.
--American Airlines says one of the planes that crashed into the Trade Center was American Airlines Flight 11, hijacked after takeoff from Boston en route to Los Angeles.
--Senior law enforcement officials say car bomb explodes outside of State Department in Washington, DC.
--Financial markets suspend trading in the wake of the attacks.
--The second tower of the World Trade Center collapses at 10:28 am Eastern.