A police investigation prompted the California Highway Patrol to close a section of northbound Interstate Highway 680 in San Jose early on Aug. 30.
The incident occurred just after 3 a.m., according to the CHP.
Officers initially responded to a location off the highway, but their investigation later prompted them to close down northbound Highway 680 between Capitol Expressway and Berryessa Road.
A Sig-alert was issued at 4:26 a.m.
Traffic is currently being diverted to Capitol Expressway or Jackson Avenue. Motorists can re-enter Highway 680 at Berryessa Road.
Further details about the nature of the investigation were not immediately available.