Jordan has announced a sweeping ban on the Muslim Brotherhood that could include shutting down the country’s largest opposition party, after accusing the Islamist group of planning attacks.

Jordan has arrested 16 members of the Muslim Brotherhood who were trained and financed in Lebanon and had plotted attacks on targets inside the kingdom involving rockets and drones, authorities said on Tuesday.

Move after alleged plot to carry out attacks threatens future of Islamist group’s political arm, the Islamic Action Front