ISIS has claimed responsibility for a rare attack on a Shiite mosque in Oman, which resulted in the deaths of nine people, including three attackers and a policeman. The incident, which occurred during the Ashura commemoration, also injured over two dozen individuals, highlighting the sectarian tensions ISIS aims to exploit. The attack shocked a nation known for its stability and sectarian harmony, with Oman following the Ibadi sect of Islam but having a diverse religious population. ISIS's infiltration into Oman, a country largely spared from Middle Eastern sectarian violence, raises concerns about the group's ambitions in the Gulf region. The attack was reported through ISIS's Aamaq propaganda channel, with the group labeling Shiites as targets for their rituals.