CAIRO (Reuters) -Islamic State claimed responsibility for an attack at a Shi'ite Muslim mosque in Oman, the group said on Tuesday, which left at least nine people dead, including three attackers, a rare security breach in the oil-producing Gulf state.
The attack on Monday, which is unusual in the wealthy, Sunni Muslim-dominated Gulf states, raises fears that the Islamic State group may be trying to gain a foothold in new territory.
