At least one person has been shot outside Chicago O'Hare International Airport early Wednesday morning, police said.

At approximately 12:54 a.m. Wednesday, Police responded to a report of an altercation taking place between multiple individuals outside of Terminal 2 on the street, police said in a statement.

"During the altercation, shots were fired and a 25-year-old male victim sustained two gun shot wounds to the lower body," police continued.

The victim was immediately taken to Lutheran General Hospital where he is listed in stable condition.

Police confirmed that a potential suspect in the shooting is being interviewed by detectives but did not disclose any possible motives in the shooting or whether those involved knew each other.

Witness say that dozens of shell casings could be seen on the ground and that detectives are investigating a white BMW that is parked outside Terminal 1.

One traveler who was asleep during the altercation told Chicago ABC station WLS she had "no clue" how she didn't hear a bullet pierce a nearby window.

"I was terrified, so I honestly, these ear plugs saved my life," Raquel Barajas told WLS. "Getting up would have made me more scared and put me in a worse scenario, so I'm just really grateful to be alive right now."

O'Hare Airport said in a statement that as of 5:15 a.m. Wednesday, "all lower-level arrival lanes at all terminals" are fully open.

The investigation is currently ongoing.