The attack was probably initiated by a group under the auspices of `` either Iran or other radical Muslim groups , '' according to Barak , who cited Hezbollah and Hamas as likely suspects . Death toll reaches seven , Bulgarian Interior Ministry says . Bulgarian foreign minister says now is not the time ` ` to start assigning blame '' Israeli intelligence minister says there are ` ` very good reasons '' Israel was warned . US President Barack Obama condemns ` ` barbaric '' attack .
Death toll reaches seven , Bulgarian Interior Ministry says . Bulgarian foreign minister says now is not the time ` ` to start assigning blame '' Israeli intelligence minister says there are ` ` very good reasons '' Israel was warned . US President Barack Obama condemns ` ` barbaric '' attack .