UPDATE 12:34 p.m.: All lanes were reopened Wednesday afternoong following the crash of a big rig on southbound Interstate 15, just north of the Winchester Road exit ramp.
A SigAlert remained in place until further notice for slowed traffic because of the backup caused all morning, the CHP reported.
UPDATE 11:37 a.m.:
Two right lanes of the southbound I-15 remained closed late Wednesday morning for cleanup of a wreck caused by a jack-knifed big rig, the CHP reported.
UPDATE 11:01 a.m.: A far right lane of the southbound Interstate 15 has been shut down until further notice, prompted by a crash involved a big rig, the California Highway Patrol reported Wednesday.
Authorities reported there are not hazardous materials involved.
UPDATE 8:33 a.m.: Reports of a jack-knifed semi on the southbound 15 Freeway in Temecula were coming in Wednesday morning.
The crash, reported at 7:49 a.m., is at the Winchester off-ramp.
Traffic is backed up to at least the Murrieta Hot Springs Road exit and three lanes are reportedly shut down due to the crash.
Traffic on the southbound 215 to Menifee is also jammed.
There is no word on injuries.