Photos: John Ferrara.

UPDATE, 10:58 p.m.: Rescue swimmers are out of the water, and — according to scanner traffic — they have reported that the vehicle is unoccupied. One lane of northbound traffic has been reopened, says the Outpost’s John Ferrara, who is at the scene.

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UPDATE, 10:48 a.m.: They’re shutting down Highway 101 in at least one direction at the location.

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Emergency personnel from Eureka and Arcata are responding to a location on Highway 101 just south of the Samoa boulevard exit on report of a car that has left the roadway and become fully submerged in a slough.

A man who seems to have been in the vehicle has been located on South G street, according to scanner traffic. Police seem to have received conflicting reports about whether anyone was in the vehicle with him.

Rescue swimmers have responded to the scene and are in the water. Emergency personnel have confirmed that a vehicle at the location is fully submerged, with bubbles rising from the car to the surface.

We’ll update when we know more. Updates from CHP dispatch below.