Changes

Islamic State suicide bomber kills 21 at Saudi Shi'ite mosque. <ref>[http://www.reuters.com/article/2015/05/23/saudi-security-idUSL5N0YD1X520150523 Suicide bomber kills 21 at Saudi Shi'ite mosque, Islamic State claims attack, Reuters, May 23, 2015]</ref>

Islamic State suicide bomber kills 21 at Saudi Shi'ite mosque. <ref>[http://www.reuters.com/article/2015/05/23/saudi-security-idUSL5N0YD1X520150523 Suicide bomber kills 21 at Saudi Shi'ite mosque, Islamic State claims attack, Reuters, May 23, 2015]</ref>

On May 29, another suicide bomber killed 4 people in another Shiite mosque attack.

On May 29, another suicide bomber killed 4 people in a Shiite mosque attack.

==Yemen==

==Yemen==