Updated: 01:35 p.m. EDT (1735 GMT) -- 12 September 2001
Police arrive at the Boston Westin Hotel

Law enforcement officials tell CNN several people are in custody in Florida and Massachusetts as part of the investigation into Tuesday's terror attacks.


Headquarters of the U.S. Department of Defense (Army, Navy and Air Force)

Five-sided building in Arlington County, Virginia, covering 34 acres.

Designed by George Edwin Bergstrom.

Built 1941-43 at a cost of $83 million.

Has five floors and is built of structural steel and reinforced concrete.

Building has five concentric pentagons or rings.

Large concourse within it for Pentagon workers.

One of the world's largest office buildings with three times the floor space of the Empire State Building in New York.

3.7 million square feet of usable floor space for approximately 23,000 people.

The World Trade Center had two 110-story buildings, known as the "Twin Towers" and five smaller buildings.

Tower One was 1,368 feet (414 meters) tall

Tower Two was 1,362 feet (412 meters) tall

The Twin Towers were the tallest until the Sears Tower surpassed them.

Architects: Minoru Yamaski & Associates and Emery, Roth & Sons.

Built of aluminum and steel.

The foundation of each tower extended more than 70 feet below ground, resting on solid bedrock.

Constructed on six acres of landfill.

The towers were the best known examples of "tube buildings," which are strenghtened by closely spaced columns and beams in the outer walls.

Each tower consisted of 104 passenger elevators and 21,800 windows.

About 50,000 people worked in the complex, which housed the offices of more than 430 businesses from 26 countries.

Completed in 1970.

Automatic window-washing machines cleaned 600,000 square feet of glass.

Source: World Trade Center and PBS

U.N. begins pullout as Taliban denies role

September 12, 2001 Posted: 10:15 AM EDT (1415 GMT)

Taliban Foreign Minister Wakil Ahmed Mutawakel: no direct allegations  

KABUL, Afghanistan (CNN) -- The United Nations began evacuating staff as Afghanistan's ruling Taliban condemned the violence and was swift to deny any involvement in the terrorism attacks in New York and Washington.

Taliban officials also denied that Osama bin Laden, the millionaire Saudi fugitive blamed for past terrorist attacks against American targets, was the behind the attacks.

Intelligence officials and other sources have told CNN that bin Laden -- living in sanctuary in Afghanistan -- or the Al Quaida group he heads are considered suspects in the attacks.

"There are good indications that persons linked to Osama bin Laden may be responsible for these attacks," an intelligence official told CNN, echoing the sentiments of some U.S. politicians.

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From the Afghan capital of Kabul, CNN's Nic Robertson said that there was a sense of apprehension among senior Taliban officials concerned that possibly Afghanistan may be a place were retribution might be sought.

Speaking soon after the attacks, the Taliban's Foreign Minister Wakil Ahmed Mutawakel criticized all forms of terrorism.

He told reporters that Afghanistan nor bin Laden had been directly accused and it was not necessary for his country to take security precautions.

Also, Taliban's spiritual leader, Mullah Mohammed Omar, said in a statement that bin Laden was not behind the attacks.

"Osama bin Laden could be responsible," he said. "This type of terrorism is too great for one man."

'Multinational enterprise'

The Taliban gave sanctuary to bin Laden in 1996 mainly they say because of his role in war efforts that led to the withdrawal of Soviet Union forces from Afghanistan after 10-years of occupation.

Terrorism analyst Magnu Ranstorp told CNN that bin Laden is was in charge of a terrorism organization that is "truly a multinational enterprise" with followers from many different nationalities.

He also said that bin Laden is being viewed as a possible suspect behind the terrorism attacks.

"Most of the attention is focused on bin Laden, perhaps not on him personally but on many of his lieutenants his followers all over the world," Ranstorp said.

Ranstorp said there has been a massive international effort since 1996 when bin Laden declared a holy war against the U.S. to tack bin Laden, his financial assets and his followers down.

He added that U.S. and other intelligence agencies have had a great difficulty in gathering information on the Al Quaida group because of the de-centralized nature of the organization and their experience is understanding how western intelligence operates.

U.N. pullout

Local U.N. staff have been paid their salaries and it was likely there would only be a skeleton staff of U.N. officials left in Kabul and other cities around the country.

Many other smaller non-government organizations and aid groups are also preparing to pull out of Afghanistan.

The U.N. relocation is expected to be completed by Thursday, a statement said.

Also on Wednesday, helicopter gun ships operated by the Northern Alliance attacked Kabul's airport, firing missiles at targets.

The Northern Alliance have been involved in a long running civil war with the Taliban control about five percent of the country.

The Taliban says two airplanes and a workshop were damaged in the attacks.

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