Turkish authorities on Aug. 13 launched an operation targeting the leader and senior figures of an Islamic religious community known as the “Süleymancılar,” following the detection of substantial suspicious financial transactions allegedly linked to money laundering.

Turkish authorities on Aug. 13 launched an operation targeting the leader and senior figures of an Islamic religious community known as the “Süleymancılar,” following the…

New details emerging Friday from a major investigation into the group known in Turkish society as the Süleymancılar are shedding light on its alleged...