The owner of the car, Jarrah Nimr Mejbil Ghazi, 27, who is also listed as a stateless person, has also been detained.The government-linked Al-Jarida newspaper reported that at least seven suspects had been detained in connection with the attack.
‘The interior ministry will continue its efforts to uncover the circumstances of this explosion,’ said interior ministry spokesman Adel Hashash.
The ISIS-affiliated group in Saudi Arabia, calling itself Najd Province, has previously identified its militant Abu Suleiman al-Muwahhid as the man who carried out the suicide bombing, using the name that Fahad Suleiman Abdulmohsen al-Gabbaa chose to be known as within the extremist group.
CCTV footage has emerged of the bomber arriving outside the mosque in a white car. He calmly gets out of the car, walks slowly up the steps and inside the mosque.
Dressed in a white dishdasha and matching kheffiyah in order not to raise suspicion, the bomber heads towards the prayer room.