Advisory
UPDATE: Madera Road now open.
UPDATE: Madera Road now open. 
The traffic collision investigation in the area of Madera and Aristotle has now been completed. Traffic is now open in both directions.
Address/Location
Simi Valley Police Department
3901 Alamo St
Simi Valley, CA 93063
Contact
Emergency: 9-1-1
Non-emergencies: 805-583-6950