CHP in Oakland issued a severe traffic alert early Friday evening after a "meat spill" -- reportedly chicken and beef parts that came off a truck -- closed northbound lanes of I-880 near 29th Ave.

The lanes were fully reopened shortly before 9:30 p.m. according to Caltrans.

The alert was issued at around 6:18 p.m. after the traffic hazard on northbound I-880 south of 29th Ave. closed multiple lanes. Initially CHP said two lanes were closed but, a short time later, all but lane #4 were shut down. Drivers were advised to reduce their speed in the area due to dangerous conditions. 

Photos shared on social media showed a reddish sludge across all of the northbound lanes of the freeway.  

 Caltrans crews arrived to clear the mess at around 6:50 p.m. 

Motorists were advised to expect delays and to use alternate routes to avoid the area.