A scary morning in South San Francisco, as a yet-unidentified man wandering the streets with a shotgun was shot and killed by police. As of this morning, the police have still not determined a motive, and one officer was injured in the exchange of gunfire.

The trouble started around midnight Tuesday when South San Francisco Police fielded a 911 call from a resident reporting a disturbance involving a shotgun-armed man near the 3700 block of Cork Place, KRON 4 reports.

“Officers confronted a man standing in the street armed with a shotgun,” South San Francisco Police sergeant Ken Chetcuti told CBS 5. “Officers gave commands for the man to disarm himself of the shotgun. He failed to comply with the officers commands at which time gunfire erupted.”

As seen in the KRON 4 video above, police presence remained heavy in the area as morning arrived, leaving the neighborhood understandably shaken.

One officer, who has not been identified nor his injury disclosed, remains hospitalized today. Details remain scant, but anyone with relevant information is asked to call South San Francisco Police Department at 650-877-8900 or the anonymous TIP line at 650-952-2244.

Related: Woman Shot As She Walks Down Tenderloin Street