On Thursday afternoon in northern California, a 25-year-old mother was beheaded in the street outside her home. A suspect was arrested shortly after the incident, authorities reported.

Law enforcement sources told KGO-TV’s investigative team that an adult male beheaded a young woman in front of witnesses in San Carlos, a city on the San Francisco Peninsula.

Broadcastify radio traffic and law enforcement records showed that police received reports around noon that a sword was used to cut off the woman’s head.

During a press briefing just hours after the incident, Lieutenant Eamon Allen said that he could not confirm the type of weapon used in the crime. Allen referred to the weapon as “a stabbing instrument” and stated authorities were still attempting to locate it.