Suicide bomber kills four near Saudi holy site A suicide bomber has killed four security officers and injured five others near one of Islam's holiest sites in the Saudi city of Medina, according to the interior ministry. The bomber detonated his explosives after being stopped outside the Prophet's Mosque, a statement said. The mosque is the burial place of the Prophet Muhammad and Medina the second-holiest city in Islam after Mecca. Suicide blasts also struck two other Saudi cities on Monday. Earlier, at least one explosion rocked Qatif, an eastern city which is home to many minority Shia Muslims. No-one has yet said they were behind any of the attacks. Saudi Arabia has been the target of attacks by IS over the past two years. In June, Saudi’s interior ministry said there had been 26 "terror attacks" in the kingdom in that time. SOURCE: BBC News