An officer with San Antonio Park Police was credited with halting what San Antonio Police Chief William McManus called “the start of an active shooter situation” at San Antonio International Airport on Thursday afternoon when a suspect drove up to the arrivals area of Terminal B and began firing “indiscriminately.”

McManus said the officer, an 11-year veteran of the department, responded by returning fire, striking the suspect. The man was taken to a local hospital, where he was pronounced dead upon arrival, McManus said.

“The officer who stopped this saved a lot of lives,” McManus said. “This guy had a full box of ammunition, he had a .45-caliber handgun he was shooting at the direction of the terminal, at the police officer, and behind him. We were very lucky not to have a lot of people injured or killed.”

Police believe it’s the same individual who allegedly fired several shots from the Highway 281/Loop 1604 overpass earlier Thursday, KENS reports. The chief said he matched the description, and the shell casings at both scenes are identical.