Yale University did not disclose upwards of $15 million in contributions from Qatar—the Middle Eastern nation that provides funding and shelter to Hamas’s top leadership—in violation of federal reporting laws, according to an investigation by a watchdog group.

The Institute for the Study of Global Antisemitism and Policy (ISGAP) determined that Yale received at least $15,925,711 from Qatari entities since 2012, but only publicly reported one grant worth $284,668, according to a study provided exclusively to the Washington Free Beacon. Yale’s failure to report this funding runs afoul of federal disclosure laws that require American universities to semi-annually list all foreign-funded gifts and contracts exceeding $250,000, ISGAP says. It is unclear if the Qatari funding and projects were structured in a way that allowed the school to omit them from federal reports.