The California Highway Patrol temporarily shut down southbound lanes of U.S. Highway 101 on Thursday afternoon for police activity.
In a social media post at 12:46 p.m., the CHP said southbound 101 was shut down north of Alum Rock Avenue. Officers and San Jose police officers were investigating an undisclosed incident, the CHP said.
Units were seen gathered under the McKee Road / E. Julian Street overpass.
Traffic was diverted to McKee/Julian, the CHP said. By 2 p.m., southbound 101 traffic was backed up to the Highway 87 juncture…