After a routine maintenance check, seven bricks of what is believed to be cocaine were discovered on an American Airlines plane at the air carrier's maintenance base in north Tulsa.

American Airlines said once the drugs were discovered Sunday evening, authorities were immediately contacted.

The Boeing 757 came from Bogota, Colombia, and also had a stop in Miami.

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A maintenance worker found the packages near an electronics bay near the nose gear.

The worker called the Tulsa County Sheriff's Office, which sent officers out to investigate.

The Sheriff's Office said the total weight was 12 kilograms, with 2 kilograms of packing material.

The drugs found inside are believed to be cocaine and will be sent to Oklahoma State Bureau of Investigation for testing.

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The renovation of Jekyll Island's Great Dunes golf course includes nine holes designed by Walter Travis in the 1920s for the members of the Jekyll Island Club. Several holes that were part of the original layout where located along the beach and were bulldozed in the 1950s.(Photo by Austin Kaseman)

Credit: Photo by Austin Kaseman