Updated 08/02/12 – 4:26 p.m.

CHICAGO (CBS) — Operations at Terminal 2 at O’Hare International Airport were returning to normal Thursday afternoon, after a suspicious package forced authorities to shut down the terminal’s security checkpoints.

Transportation Security Administration spokesman James Fontenos said, around 2 p.m., a TSA canine team alerted on an item at Terminal 2.

Chicago Police responded and set up a security perimeter around security checkpoints, forcing passengers using that terminal to go through security screening at Terminal 1 instead.

Police determined the package was not dangerous around 4 p.m., and normal screening operations at Terminal 2 resumed at that time, according to Fontenos.

Delta, Air Canda and US Airways are among the biggest carriers operating out of that terminal.

Chicago Department of Aviation spokesman Gregg Cunningham said the upper level doors at Terminal 2 were secured while authorities investigated.

The terminal was not evacuated, but passengers arriving for flights departing from that terminal were sent to Terminal 1 for security screening. The airport’s “people mover” also bypassed Terminal 2 while police checked out the package.

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