Dozens of people have been killed or wounded as two strong explosions ripped through the Syrian capital, state TV said.
The blasts heavily damaged a military intelligence building in Damascus and left blood and human remains in the streets.
The explosions happened in the Qazaz neighbourhood at about 7.50am, when employees are usually arriving at work, and sent a plume of thick black smoke into the sky.
Central Damascus is tightly under the control of forces loyal to president Bashar Assad but has been struck by several bomb attacks, often targeting security installations or convoys.
The most recent major explosion in the capital occurred on April 27 when a suicide bomber detonated an explosives belt near members of the security forces, killing at least nine people and wounding 26.