The Security Spokesman of the Ministry of Interior said that "Further to the statement issued today about foiling an attempt to commit a terrorist crime targeting worshipers in Al-Anoud Mosque, Dammam City, while performing Friday prayer; preliminary investigation revealed that the explosion coincided with the suspicious car being parked. The explosion happened when a person wearing female clothes blew himself up using an explosive belt at the mosque's gate as the security men were approaching him to check his identity. As a result, the person was killed along with three others. Four persons sustained a non-life-threatening injuries and were taken to the hospital. A criminal investigation is ongoing.