A U.S. Customs and Border Protection officer shot and killed a knife-wielding Mexican man at a border crossing in Calexico, California, on Wednesday, the Associated Press reports.

The agency’s San Diego field office director, Pete Flores, said that, around midnight, the border inspector fired his gun four times, striking the man in the chest and possibly also his neck.

From the AP:

The 35-year-old Mexican, who was not permitted to enter the United States, was on a bicycle in a vehicle inspection lane for “trusted travelers” and appeared as if he wasn’t going to stop, Flores said. The man wielded a knife that was about eight inches long after the inspector grabbed his other arm and forced the man to drop his bike.

The man raised his knife and moved toward the inspector, who was backing away when the shots rang, said Flores, who didn’t know the precise distance between the two men.

The man was pronounced dead at a nearby hospital. The officer, who worked in Calexico since joining Customs and Border Protection in February 2008, was unharmed. Neither name was released.

CBP has video of the incident—which it will investigate, along with Calexico police and the U.S. Homeland Security Department’s inspector general—but Flores said the agency did not plan to release it.

Photo credit: AP Images. Contact the author of this post: brendan.oconnor@gawker.com.