Syrian President Bashar al-Assad's government are the "usual suspects" behind car bombs in Turkey that killed around 40 people and wounded 100 more, Turkish deputy prime minister Bulent Arinc said.
He added that Turkey must wait for the results of an investigation before deciding on any response.
The blasts occurred in the town of Reyhanli close to the border and home to many of the more than 300,000 refugees who have sought shelter from the uprising against Assad that erupted in Syria in March 2011.
More top news
A man wearing a Zorro costume was arrested after reports of a gunman at Los Angeles International Airport turned out to be false.
Xavier Bertrand called for changes to the UK-France border agreement that would allow asylum seekers to apply in French 'hotspots'.
A bomb has exploded at the Brussels Institute of Criminology, after a car rammed through the barriers in the early hours of Monday morning.