One person was shot at Oklahoma City’s Will Rogers World Airport on Tuesday, police said, prompting authorities to close the airport and ask people inside the building to shelter in place.

Oklahoma City Police Capt. Paco Balderrama said police have confirmed one victim in the shooting and received reports of a possible second victim, but authorities have not yet found that person.

Balderrama said he does not know the condition of the confirmed victim. No other details of the shooting were immediately available.

All streets are blocked off and people should avoid the airport, Balderrama said.

Airport spokeswoman Karen Carney said all operations are suspended.

“There are going to be some delays for flights until we have further information,” Carney said, while referring other questions to police.

Carney said Southwest, American, Delta, United and Alaska airlines each have terminals at the airport on the city’s southwest side, and 7,000 to 8,000 travelers pass through the facility daily.

(AP)