
The blasts were heard near the Hameh suburb, the TV said, without giving further details.
According to a one reporter, four powerful explosions were heard in Damascus before daybreak Sunday.
The blasts happened in swift succession and were heard across the capital.
Activists, however, said the blast ripped through ammunition depots in the Qassioun Mountain in Damascus.
Blasts have become increasingly common in Syria as the country's crisis erupted in March 2011 with no foreseeable solution in sight.