UPDATE (8:26 p.m.) - The driver of the vehicle is now in police custody, according to the San Luis Obispo County Sheriff's Office.
The suspect has been identified as Patrick Kevin Van Ess, 63.
The Sheriff's Office is currently trying to confirm more information about his identity.
At Sandspit Beach, authorities set up a perimeter around the truck and commanded Van Ess to exit the vehicle.
After the suspect continuously refused orders, the Sheriff's Special Enforcement Detail introduced tear gas into the truck.
At approximately 7:45 p.m., Van Ess stepped out of the vehicle and was taken into custody.
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(5:54 p.m.) - Sheriff's deputies are reportedly trying to make contact with the driver of a military-type vehicle who led officers on a chase into Montaña de Oro late Wednesday afternoon.
Authorities at the scene say the entrance to the Sandspit Beach parking lot, where the vehicle is believed to be located, is currently blocked off. A large law enforcement presence is at the scene.
According to the San Luis Obispo County Sheriff's Office, the incident began when sheriff's officials received a report of a suspicious vehicle. Deputies tried to initiate a traffic stop and the driver fled.
Witnesses reported seeing the vehicle parked in a parking lot in Los Osos earlier in the day and described it as a large, military-looking truck.
This is a developing story and will be updated with new information as it becomes available.
