Police arrested a Sioux Falls man Thursday afternoon after they say he threatened to bring a gun to Sioux Falls Regional Airport and open fire.

Police say Connor Park, 22, is an employee for a private security company subcontracted through TSA at Sioux Falls Regional Airport. They say he spoke with coworkers at the airport about bringing a gun to work and made threats to “shoot up the place.” They say he also made threats to target several supervisors.

Today police commended airport employees for taking action after the conversation. They say Park’s coworkers alerted the company of the threats, who notified police.

Park was arrested yesterday afternoon in his home in the 6000 block of S. Cliff Ave., after investigators deemed the threats to be “credible.” Sioux Falls Police Spokesman Sam Clemens said today that investigators found that Park had access to several firearms.

Park is charged with making terroristic threats, a felony offense. He is expected to appear in court this afternoon.