The attack on August 6, 2015 occurred in a mosque used by security forces in Abha city.

 Saudi Arabian authorities are still to come to terms with a suicide bomb attack on Thursday, August 6, 2015 in a mosque in Abha city used by security forces close to the border with Yemen in which  over 17 people were killed, The Telegraph reported.

While a senior official from the Ministry of Interior confirmed  that 13 people died from the bomb attack inside the mosque in Abha city in south west of the country, State Television earlier reported a death toll of 17 people, The Telegraph said. The mosque in Abha, the capital of Asir Province, was part of the local headquarters of a State Security Unit called the Special Emergency Force, Interior Ministry spokesman was cited as saying. The spokesman is further cited as indicating that of those killed, 10 were members of the force, while three were workers in the compound. They were praying when the bomber struck within their ranks. BBC reported that it was not yet clear who carried out the attack as no group had yet claimed it but accusing fingers were pointing at the Islamic State (IS) militants. 

The Telegraph reports that in May 2015, two suicide bomb attacks on Shia moques in Saudi Arabia were claimed by Islamic State of Iraq and the Levant. The first on a mosque in Qatif in the east of the country killed 21 worshippers, and another four died in a bombing a week later at a mosque in Dammam. In July 2015 Saudi authorities reportedly arrested 431 suspected members of IS, accusing them of plotting suicide attacks on security forces and mosques in various parts of the country. The IS militants have targeted mosques in the region as in another bombing they claimed on a Shia mosque in Kuwait last June killed 27 people.

Saudi Arabia is also heading a campaign against Shia-led rebels in neighbouring Yemen.