An alleged suicide attack has struck outside a Shi’ite mosque in Dammam, eastern Saudi Arabia, during Friday prayers on 29 May, one week after the deadly suicide bombing in Qatif that left 21 people dead, including two children.The Saudi interior ministry confirmed that four people were killed after a car exploded in a parking lot near the Shi’ite Imam al-Hussein mosque in Dammam, close to Qatif. The bomber detonated his explosives after being stopped by security guards. It is unclear if the bomber was among the four.Pictures showed black smoke billowing into the sky at the entrance of the mosque.