MIAMI -- Atlanta Falcons quarterback Michael Vick was found Wednesday at Miami International Airport allegedly carrying a water bottle with a hidden compartment, TSA Operations Center Officials said.

Vick was going through the Concourse G screening point to board an AirTran flight when officials said he was reluctant to give up his bottle of water.

Airport officials said that it was a 20 oz. Aquafina bottle and the bottle's label concealed a seam, which separated the top and the bottom of the bottle.

Both ends were sealed by clear partitions and what appeared to be a silicone sealant, TSA supervisors 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," a police report said.

Officials said that the lower half of the bottle was almost completely full of a clear liquid and the top half contained a small amount of that same clear liquid.

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.

A TSA screener identified the man who was reluctant to give up the bottle as Vick. Police also said surveillance video inside the concourse showed Vick carrying the bottle.

Miami-Dade police have received flight reservation confirmation that Vick was on an AirTran flight No. 338 Wednesday to Atlanta.

Vick has not been arrested and the substance found inside the bottle is being analyzed at a Miami-Dade Police Department lab.

It could be weeks before any decision is made on whether to file charges, said police Detective Alvaro Zabaleta.

"We'll do an analysis and see what it is. There's no sense of urgency to it," he said Thursday.

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.

Vick's younger brother, Marcus, is a wide receiver for the Miami Dolphins. Michael Vick was the overall No. 1 draft pick in the 2001 NFL draft. In 2006, Michael Vick passed for more than 2,400 yards and also topped 1,000 yards rushing.