Polish law enforcement officials say that an Israeli man is in police custody and receiving psychiatric care after slightly hurting a police officer in Warsaw with a knife.

Warsaw prosecutors’ spokesman Lukasz Lapczynski said Friday that the 24-year-old man, whose name wasn’t released, was to be questioned during the day in a hospital. He wouldn’t give more details.

Robert Szumiata, a spokesman for Warsaw police, said the man attacked a policeman with a knife Thursday, hurting him in the face.

Police had been called by residents anxious over the man’s strange behavior, hours before a nearby concert by U.S. band Allah-Las whose concert the previous day in the Netherlands had been cancelled amid a terror threat.

(AP)