3:55 update: Traffic is flowing normally after overnight slowing. 

Two separate crashes on both sides of the Grapevine are slowing traffic on Interstate 5 near Fort Tejon. 

According to CHP, on the southbound side, two semi trucks crashed and caught fire. One truck spilling ceramic tiles all over the freeway.

On the northbound side, a car crashed into the center median and caught fire. 

Kern County Fire crews from Frazier Park are responding and helping with the clean up. 

Drivers are advised to use caution when driving  through the area.

No word yet on whether or not any one was injured in either crash or what caused the wrecks.