Syrian state TV announced that Syria's national security chief has died from injuries he received in a bomb attack in Damascus on Wednesday.
Hisham Ikhtiar is the fourth regime insider to die as a result of the attack at the national security bureau.
The army has fought off an assault by rebels in the Midan area of Damascus.
Meanwhile, Russia's envoy to France has sparked a row with Damascus after suggesting President Bashar al-Assad was ready to step down.
Alexander Orlov said Assad had, in effect, agreed to step down last month at a conference in Geneva which had planned for a democratic transition.
His comments triggered an angry response from Syria, where the information ministry said the claims were completely baseless.
The announcement of Ikhtiar's death came as the other victims of the bomb attack were buried.