A multi-vehicle crash on northbound State Route 163 backed up traffic on the freeway Saturday, authorities said.
The collision happened just before noon near the Friars Road on-ramp.
At 12:20 p.m., officials issued a Sig Alert at northbound SR-163 from Interstate 8.
By 12:30 p.m., officials confirmed at least one patient had been transported to the hospital with unknown injuries.
By 1 p.m., officials were beginning to clear the scene of the crash.
No further information was immediately available on the cause of the collision or exactly how many vehicles were involved.
Check back for updates.