Cargo clean on American jet

American Airlines officials doubt a jet that hijackers used to blow up one of the World Trade Center towers contained explosives.

NBC News and other media have speculated that both the American and United Airlines jets that crashed into the towers may have contained a large quantity of dynamite or other explosives. The American flight originated from Boston.

"We only had two cargo things, which were lobsters," said an American cargo manager.

The live lobsters were shipped in two large pods by commercial operators in Boston to customers on the West Coast. American Flight 11 was bound for Los Angeles.

"We ship them all the time," the American worker said.

The plane, carrying 81 passengers, nine flight attendants and two pilots, also was loaded with U.S. mail and luggage, which did not raise any suspicions.

"There wasn't much cargo in it at all," the worker said. "Nothing was unusual."

Attorney General John Ashcroft confirmed that the box-cutter-wielding hijackers also threatened passengers and crews by claiming they had bombs.