Bombing near Prophet Mosque killed 4 Saudi security personnel:

Four Saudi security personnel were killed and five others were wounded in a suicide bombing outside one of Islam's holiest sites, the Prophet's Mosque in Medina, the interior ministry has said.
"Security forces suspected a man who was heading towards Al-Masjid al-Nabawi (the Prophet's Mosque) as he passed through a visitors parking lot. As they tried to stop him, he blew himself up with an explosive belt causing his death, and the death of four security personnel," the statement said yesterday, adding that five others were injured.