A suicide bomber struck the Imam Ali mosque in al-Qadeeh, in Saudi Arabia's eastern Qatif province, during Friday prayer services. Witnesses tell Reuters that 30 people were killed in the blast. The official Saudi news agency has confirmed an attack at a mosque, but hasn't provided details. Photos posted to Twitter show bodies covered with rugs and blankets amid rubble inside the Shiite mosque. A suicide bomber has attacked a Shiite mosque in #SaudiArabia, killing several people: http://t.co/yGRUVMHjXl pic.twitter.com/sHVn5zZdbc — DW (English) (@dw_english) May 22, 2015 Saudi Arabia is about 15 percent Shiite, and most of them live in the eastern part of the Sunni kingdom.