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ST. LOUIS, Mo. (First Alert 4) - Police at Lambert Airport briefly closed off the roadway that leads to arrivals and departures at Terminal 1 during an investigation on Wednesday.

Multiple top police sources initially told First Alert 4 that a potential explosive device was located inside a vehicle near Terminal 1. Bomb and Arson Police Units were spotted at the scene.

In a statement, the airport later said a contracted traffic control officer reported there was an abandoned Ford F-150 truck left on the departure level at Terminal 1. Airport police then closed off traffic leading to Terminal 1 at the upper and lower levels and swept the truck for explosives.

Traffic was temporarily re-routed through the Terminal 1 garage while the search was going on.

TRAFFIC ALERT: T1 Departures Drive and Arrivals Drive are closed at this time. We are rerouting traffic through the T1 Garage. We appreciate your patience and will share updates as soon as we know more. pic.twitter.com/Bki7cbuWGf - STL Airport (@flystl) October 8, 2026

Police later determined there was no threat and traffic was re-opened. Airport officials say that air traffic was not affected.

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