Officers were called to a home in the 3300 block of Chestnut Street in West Oakland for a report of a burglary about 2:30 p.m. When they arrived, two men, one carrying what looked like a gun, rounded a corner and saw police, said Oakland police Sgt. Arturo Bautista.
An officer, whose name has not been released, fired one shot, striking a man in the shoulder, Bautista said.
"There is no question the suspect had (what looked like) a gun,'' said Bautista. "The officers responded to the threat."
What looked like a gun turned out to be a fake, something that can be purchased at a sporting goods store for less than $100.
"It looks exactly like a Glock (handgun)," Bautista added.
The other suspect had a knife but did not wield it at officers, police said.
The wounded suspect, whose name, age and city of residence were not released, was taken to a hospital with injuries that were not life-threatening, police said. The other man, who also was not identified, was not injured. Both were arrested. Bautista said the man who was shot has a long history of burglary arrests.
No one was home at the time of the burglary, and no one else was injured, Bautista added. Police have yet to interview the officer who fired his weapon. Under department policy, he will be placed on administrative leave pending a full investigation.
Police blocked off about five blocks around the crime scene, and residents waited for hours to return to their homes and jobs as helicopters buzzed overhead and dozens of police officers manned the yellow crime scene tape.
Friday's shooting was the second time this week an Oakland police officer has shot someone.
Officers responding to a report of an armed robbery Wednesday night in Old Oakland shot and wounded a 16-year-old Oakland boy who officers "perceived as a threat," Chief Howard Jordan said Thursday.
It turned out the boy, who was grazed on his right jaw, was not involved in a crime. The boy's family has hired Oakland attorney John Burris to represent them.
Wednesday's incident started when a woman got off work at Le Cheval restaurant in the 1000 block of Clay Street and was heading to her car when she was knocked to the ground and robbed of her purse by a man with a knife.
Officers arrived about 9:50 p.m. and someone -- it's not clear who -- gave them descriptions of three suspects -- all black men, ages 22-26, Jordan said, one wearing a black, hooded sweatshirt.
Minutes later, witnesses told police that the three people who matched those descriptions appeared to be casing another potential robbery victim on a nearby street. Jordan said that at 10:08 p.m., one of the investigating officers perceived a threat by at least one of the teens and fired his gun.
Two other teens were there, but no one else was hit. None of the teens were armed, police said. Jordan said Thursday that his officers had made a mistake.
In an unrelated incident, California Highway Patrol officers came under fire Thursday night during a traffic stop near the intersection of 94th and Bancroft avenues about 11 p.m. The stop may have originated on a highway, but that was not clear Friday.
A man at the scene fired at least one round at the officer. No injuries were reported, and the suspect was taken into custody without further incident, police said.
A CHP spokeswoman declined to discuss the case Friday, directing questions to Oakland police, who did not comment on the case Friday afternoon.
Bay City News Service contributed to this report. Follow Kristin J. Bender at Twitter.com/kjbender.