CAIRO – The Islamic State group claimed responsibility for a suicide bombing at a Shiite mosque in Saudi Arabia, warning that more “black days” loom ahead in a direct challenge to the rulers of the Sunni kingdom.
Friday’s attack was the kingdom’s deadliest militant assault since a 2004 Al Qaeda attack on foreign worker compounds, which sparked a massive Saudi security force crackdown.
However, this Islamic State attack in the village of al-Qudeeh in the eastern Qatif region targeted Shiites, whom ultraconservatives in Saudi Arabia regularly denounce as heretics.

