A bomb exploded near Mohangarh town in the district, police said in Jaisalmer on Tuesday.
However, no loss of human life or property was reported in the explosion, they said, adding senior police and administration officials are on the spot, about 60-kms from here.
The incident occurred late last night in a vacant land near Indira Gandhi canal, but police came to know about it this morning.
Meanwhile, Defence officials are investigating the matter.
"We have no idea about such incident and details are being checked out," Defence PRO Lt Col N N Joshi told PTI.