According to Belgian intelligence reports, some documents from Gulf Arab-financed mosques promotes the anti-Semitic and stereotypes of jews, and also calls for the persecution of gays. The reports acquired by OCAM national terrorism monitoring centre see a document that called that gays be stoned to death or thrown off buildings, and describe jews as "evils."
The reports say that the documents retrieved shows contents with xenophobia, radicalism and anti-Semitism.
The mosque that teaches this problematic content is sponsored by the Saudis, and the Belgian government has said it will terminate the half-century old lease on the mosque because of the contents its promote. It is currently run by the Muslim World League.
The manual also tagged jews as "corrupt, evil and treacherous people" and call for "war" and also call its members to attack people that do not follow Sunni Islam.
The result of the latest development is the ongoing investigation of the suicide bombings that kill 32 people at the Brussels airport, and metro station in March 2016. The Islamic terrorist group claimed responsibility for the killing.