(AP) — A 23-year-old Madison man has been accused of threatening three students at Northeast Community College in Norfolk.

The Madison County sheriff’s office says John Ertzner was arrested last week. Madison County Jail records said Ertzner remained in custody on Monday. Court records don’t list the name of his attorney.

Officials say an armed man approached three students at the school on Monday. A court affidavit says the students reported that the man followed them on a campus road and stopped next to them when they stopped and pointed a gun at two of them.

Ertzner told an investigator he mistook the three for other men who’d chased him earlier Monday in Norfolk. He said he’d put his BB pistol on his car console but didn’t point it at the students.