The German government has accused Turkey of being a hub for Islamist groups that allows them to further their aims across the Middle East, according to a leaked confidential document. It alleges that the government of Turkish President Recep Tayyip Erdogan supports Palestinian militant group Hamas, Egypt’s Muslim Brotherhood and “groups in the armed Islamist opposition in Syria,” all of which follow Sunni Islam, the same strand as the majority of Muslim Turks. In its response, the ministry says that the Turkish government’s “numerous statements of solidarity and supportive actions” for these three groups “underline their ideological affinity with the...