Three people were killed and five others injured late Thursday in a single-car crash in northern San Diego County. All were ages 18 to 22, authorities said.
The crash occurred around 11 p.m. along State Route 78 near Oceanside and Carlsbad, the California Highway Patrol said.
A 2000 Honda Prelude, driven by a 19-year-old, veered off the roadway and down an embankment, hitting a power pole, the CHP said.
The driver, as well as a male and female passenger, were killed, the CHP said, and five others with "moderate to major" injuries were taken to local hospitals. Their identities were not immediately released.
It is unknown whether drugs or alcohol were involved, the CHP said. Investigators said they were trying to determine how fast the car was traveling and why the driver may have lost control.