Police said at least six crashes were caused by animal fat that spilled onto a ramp to I-35W in Fort Worth Monday night.
Police said a truck leaked the fat onto the ramp from Northwest 28th Street to I-35W at about 10 p.m.
The truckleft the scene, but police said the fat that spilled onto the road caused about six subsequent crashes. All the crashes were minor.
Crews are working on cleaning up the mess.
No further details have been released.