Bombings claimed by the Islamic State militant group killed 71 people and wounded dozens more yesterday, near a revered Shiite shrine outside the Syrian capital Damascus.
A bus station and a building housing military headquarters were hit by the blasts, which mangled nearby vehicles.
It happened as the government and opposition groups gathered in Geneva in a bid to start talks aimed at a political solution to the conflict.
The EU said that the attack, claimed by the Islamic State group, was aimed at disrupting the talks.