Three New Mexico pueblos and one tribe on Tuesday sued the prediction market platform Kalshi, alleging the app enables sports gambling on tribal land and, in doing so, violates gaming compacts and federal law.

In an announcement Wednesday, the plaintiffs — the Mescalero Apache Tribe, as well as the Pojoaque, Sandia and Isleta Pueblos — said Kalshi provides anyone over age 18 access to sports gambling in New Mexico, which deprives tribes of revenues they receive for schools and other services in accordance with hard-fought tribal compacts and state and federal law.