Medics were requested to the 8800 block of Grossmont Boulevard in La Mesa Friday evening after a vehicle slammed into a building, authorities said.
The accident happened just before 6 p.m. Police said a car heading west on Grossmont Boulevard lost control for unknown reasons and ran into a single-story building.
Police said there were four people in the car at the time of the crash and three were transported to a local hospital with non life-threatening injuries.
Further details on the extent of their injuries were not immediately available.
La Mesa police and firefighters also assisted at the scene. No other vehicles were involved.