Four suspected Saudi militants and a security guard have been killed in a shoot-out in Saudi Arabia, the interior ministry has said. The gun battle began when security forces spotted five men wanted on security charges in Buraida, state television quoted officials as saying. The suspects opened fire when approached by guards, who responded. Buraida, a desert town north of Riyadh, is known to be a heartland of militant Islamists linked to Osama Bin Laden. Full Story