Humans generally fear those different to them (i.e., an out-group) in the same way they fear natural predators. But fear pushes us to derogate others, whether they constitute a threat or not. Research has examined how fear associated with specific intergroup relations interferes with how individuals relate to in-group and out-group members. However, we know relatively little about how intergroup relations might be affected by incidental emotions. We tested how incidental fear affects empathy toward in-group and out-group members. We found that exposing participants to fearful imagery was sufficient to reduce empathy, but only in response to out-group suffering. We discuss how these findings provide insight into how fear is often leveraged to encourage social tribalism. (PsycInfo Database Record (c) 2021 APA, all rights reserved).