After evacuating the North Terminal at Detroit Metropolitan Airport Monday morning, police reopened the gate.

At about 5:50 a.m., a TSA agent found a "suspicious object" during a screening checkpoint at the Romulus, Michigan airport, according to an official statement.

The check-in lobby was subsequently shut down to let the Airport Authority Police Explosive Ordinance Detection squad come to the terminal to retrieve the item, which had been first spotted in an X-ray machine. The item was taken to a secluded area of the airport to be analyzed, reports ABC 7 News' news site in Michigan.

One passenger was detained for investigation, but details on the potential perpetrator are fuzzy.

The "explosive device" caused an enormous hubbub, as travelers were whisked to the unused Smith Terminal, for want of, "an abundance of caution," one airport spokesperson told ABC 7. 

It was not until 8:20 a.m. that fliers could continue going through the proper airport terminal, said MyFoxDetroit.com.

Spokesperson for the Detroit Metropolitan Airport said all authorities acted accordingly after the item of concern was found in a piece of luggage. The evacuation was the right thing to do. (See photos of the evacuation here).

"This response was a strong team effort by Transportation Security Administration, Airport Authority Police, Federal Bureau of Investigation, and airline personnel," a statement from airport authorities said.

Large groups of people, many of them wearing shorts in lieu of spring break, had to pull their pieces of luggage from the terminal in order to move to safety.

No injuries were reported throughout the entire event at the North Terminal.

The Terminal serves fliers traveling on Air Canada, Air Train, American, Frontier, Lufthansa and United, to name just a few airlines.