The blasts occurred a day after an Israeli official said his country had carried out an air strike targeting a consignment of missiles in Syria. The research center hit on Sunday was also targeted by Israel in January.
“The new Israeli attack is an attempt to raise the morale of the terrorist groups which have been reeling from strikes by our noble army,” Syrian television said, referring to recent offensives by President Bashar al-Assad’s forces against rebels.
There was no immediate comment from Israeli officials on Sunday’s explosions. “We don’t respond to this kind of report,” an Israeli military spokeswoman told Reuters.
The U.S. State Department had no immediate comment and the Israeli Embassy in Washington declined comment.
Assad is battling a two-year uprising that began with mainly peaceful protests that were met with force and grew into a bloody civil war in which the United Nations says at least 70,000 people have been killed.
Video footage uploaded onto the Internet by activists showed a huge ball of fire rising into the night sky on the edge of the Syrian capital.