A shootout in Vallejo left four people hospitalized Thursday morning. (CBS) A shootout in Vallejo left four people hospitalized Thursday morning. (CBS)

VALLEJO (CBS SF) – Police in Vallejo are investigating a shooting that left four people hospitalized on Wednesday night, a police lieutenant said.

Officers responded to reports of shots fired in the 1800 block of Mini Drive at about 10 p.m., Lt. Lee Horton said.

Moments later, residents of nearby Betty Court called 911 after victims of the shooting knocked on their doors seeking help, Horton said.

When officers arrived, they determined that four people — three men and one woman — had been injured by the gunfire, the lieutenant said.