A crash had closed northbound El Camino Real in San Mateo on Tuesday evening, police said on Twitter.
But at around 6:45 p.m., police tweeted the collision was cleared.
The closure was between Monte Diablo and Poplar.
Drivers were being asked to avoid the area.
No other information has been made available.
Stay with KRON4 for updates on this breaking news story on-air, online, and on the KRON4 app.
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