The Beverly Hills police department is currently investigating rock star Joel Madden. This news comes on the heals of a report that a female photographer filed a “Crime Report” claiming that Madden had attacked her during a violent confrontation Sunday night.

The woman claims that Madden struck her on the left breast “with the heel of his hand” as he tried to escort his girlfriend Nicole Ritchie out the back door of Mr. Chow restaurant in Beverly Hills.

TMZ states that the photographer has spoken with them and says that she has a welt from the incident and had to see a doctor for treatment.

Madden was also seen forcefully stiff-arming the chest of another paparazzo moments after the alleged incident with the female photographer. The police are taking reports of this crime seriously and are investigating the incident.