() Border Patrol shot and killed a man after he opened fire and injured a police officer at a building that houses Border Patrol at a Texas airport, police say.

Police say they got a call before 6 a.m. Monday about a person attacking the building at the McAllen, Texas, airport. The airport was shut down as police responded.

Officer Ismael Garcia, who has served the McAllen Police Department for 10 years, was hit by gunfire and taken to a hospital, McAllen Police Chief Victor Rodriguez said at a news conference on Monday morning.

Rodriguez said the shooter was Ryan Loius Mosqueda, 27, of Michigan. Police say he was killed when Border Patrol returned fire.

Investigators are still trying to determine a motive. Rodriguez said Mosqueda’s car had Latin text spraypainted on it but could not immediately determine a connection.