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Michael Vick's 20-ounce water bottle is being analyzed by Miami police. ((Marc Serota/Getty Images) )

Atlanta Falcons quarterback Michael Vick reluctantly surrendered a water bottle to security at Miami International Airport that contained a residue "closely associated with marijuana," police said Wednesday.

Vick entered a concourse Wednesday morning at the airport with the 20-ounce bottle.

He eventually handed it over and boarded his flight to Atlanta.

But his initial reluctance to turn over the bottle aroused suspicion among airport security screeners, a police report said.

The bottle was found to have a hidden compartment that contained "a small amount of dark particulate and a pungent aroma closely associated with marijuana," the report said.

The compartment was hidden by the bottle's label, so that it appeared to be a full bottle of water when held upright, police said.

No charges have been filed, but police said the bottle would be sent to a lab for analysis.

Vick did not immediately return a phone call early Thursday.

"We plan to look into the matter and discuss it with Michael Vick before having any further comment," Falcons spokesman Reggie Roberts said.