According to an article on MSNBC, a small backpack caused a fire and lead to an evacuation at the Phoenix Sky Harbor International Airport on Tuesday. Officials said the backpack did not contained explosives and the cause of the fire was probably from leaking toiletries containing alcohol. The heat from the belt and the rubbing of the track sparked a fire. No one was hurt.

The fire was extinguished quickly, Gehlbach said.

About 10 a.m., a baggage handler loading bags on the US Airways plane noticed that the backpack was hot and set it aside. The fire department was called when the bag began to smoke, and they in turn called in a hazardous materials team as a precaution.

"When the bomb squad arrived, everything was melted in the bag," said Victor Rangel, a spokesman for the Phoenix Fire Department.

Rangel said the backpack contained hairspray and other toiletries.

The gate area was evacuated as a precaution. The plane, bound for San Antonio, was taken to another gate, and passengers were allowed to board Flight 200 after about an hour's delay. The bag's owner was questioned by police and allowed back on the flight.

US Airways spokeswoman Valerie Wunder said no other flights were affected.