At least 25 people have been killed in a suicide bomb attack at the main Court Complex in the centre of the Syrian capital, Damascus, state media report.
Two hours later, a second bomb blast was reported in Rabweh, to the west.
The bombings come on the sixth anniversary of the uprising against President Bashar al-Assad.
What began as an Arab Spring uprising against an autocratic ruler has mushroomed into a brutal proxy war that has drawn in regional and world powers.
Activists say more than 320,000 people have been killed and 11 million displaced.