A motorcyclist suffered fatal injuries Wednesday night on I-580 in rural Alameda County when he was struck by an SUV and semi-truck that failed to remain at the scene and are being sought by the CHP. (File)

ORINDA — The California Highway Patrol shut down a stretch of westbound state Highway 24 on Wednesday after what it called a possible freeway shooting.
The agency announced the lane closure about 11:10 a.m., and authorities advised commuters to use different routes than the highway. The closure was near the Fish Ranch Road exit.
The CHP estimated the highway would be open by 11:45.
No other details were available immediately.
This is a developing story. Please check back for updates.
Originally published at Rick Hurd