A terminal at Miami International Airport was evacuated briefly today as US authorities checked on a possible explosive device.
Transportation Security Administration spokesman Christopher White said a watch and other items in a box appeared to be part of an explosive device, but police determined they were harmless.
The box was spotted in an X-ray machine scanning checked luggage near a United Airlines ticket counter.
Hundreds of passengers had milled around outside the terminal with their luggage, and police officers blocked sliding doors until given the all-clear.
Airport spokesman Marc Henderson said the evacuation delayed six flights. About 2,000 passengers were affected.