A black man arrived at the entrance to the building where he lives in St. Louis late Friday night only to find himself blocked by a white neighbor who demanded proof he lived there.

“Please move, ma’am,” the man, D’Arreion Toles, says in a video he recorded of the encounter, which shows the woman with her dog on a leash standing in the doorway at the condominium complex, the Elder Shirt Lofts.

“I can,” she responds. “Do you live here?”

“I’ve already answered that question,” Mr. Toles, 24, replies as he continues to try to get in. “Excuse me.”

But the woman, Hilary Brooke Mueller, refused to move as she continued to ask Mr. Toles what unit he lived in and to see his key fob. When he declined to tell her, she remained in his path.