MINNEAPOLIS (AP) — A Minnesota man who has been accused of using his knowledge of the Quran to persuade young men to leave the state in 2007 and fight with the terror group al-Shabab in Somalia has been working in a position of authority at an Islamic school, authorities said Wednesday.

Chief U.S. District Judge Michael Davis called Omer Abdi Mohamed a “danger to the community,” and ordered that he remain in custody until he is sentenced on one terror-related count in the government’s ongoing investigation into the recruiting of more than 20 young men who authorities say left Minnesota to join the al-Qaida-linked group.