Has there been any animal species that turned carnivore from a herbivorous lineage?

We all know the cases of facultative carnivores that evolved into herbivorous creatures: bears that gave way to pandas, theropods that gave way to therizinosauridae, even bees are thought to have evolved from carnivorous wasps, etc

I'm wondering if there is any recorded instance in evolution where it happened the other way around, after all almost all herbivores won't pass the opportunity to consume animal protein should they need it