#TRAFFIC ALERT: Jackknifed semi blocking multiple northbound lanes on 5 Freeway in Sun Valley.

#TRAFFIC ALERT: A jackknifed semi is blocking several northbound lanes of the 5 Freeway in the Sun Valley area. Traffic is backed up for several miles, and drivers should expect major delays through the morning commute. CHP officers and tow crews are on scene working to clear the semi and reopen lanes. Motorists are urged to use alternate routes and allow extra travel time.