The first, at 4:38 p.m., occurred on Sulphur Bank Drive at North Drive in Clearlake Oaks, according to the California Highway Patrol.
Two vehicles collided head on, the CHP reported. At least one person had major injuries, while three others escaped uninjured. No information was available from the CHP on the names of the people involved.
One individual was reportedly being arrested for driving under the influence or drugs.
A second collision involving a solo vehicle occurred on Highway 29 just south of Twin Lakes near Lower Lake at 9:28 p.m., according to the CHP.
The CHP reported that a man drove a white SUV into the embankment, where the vehicle ended up against some trees just off the roadway.
An ambulance responded to the scene, where the male driver was reported to be covered in blood, according to the CHP.
No further information on that crash was available Monday evening.
E-mail Elizabeth Larson at This email address is being protected from spambots. You need JavaScript enabled to view it..
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