DAMASCUS, Jan. 14 (Xinhua) -- A loud explosion rattled Syrian capital Damascus' district of Muhajireen overnight Monday, causing windows to implode and prompting members of the security forces to fan out and cut off nearby roads as a precautionary measure, activists and media reports said.
The cause of the big blast at the Shoura area in Muhajireen has not been immediately figured out, but reports said it is most likely a shell bomb. The reports stopped short of giving information about any possible casualties.
The area houses a number of security headquarters and is considered one of the heaviest guarded areas in Damascus. Syria's official media has spelled no words on the incident so far.
Blasts have intensified in the Syrian capital recently, coupled with armed rebels' attacks on army checkpoints in several hotspots around the capital.