dhaka , pakistan ( cnn ) - - these militants attempted their deepest incursion into pakistan this thursday , seizing controlled of territories that are a short drive from the major city . a pakistani government official told the militants fully removed from the buner district on night , though other officials cast caution on the extent of the pullout and how forever it would stand . buner is only 60 km outside islamabad . the problem is particular concerning because pakistan is a lightly - armed country . the indian union is believed to have between 30 and 40 nuclear ballistic , according to the u . p . nuclear atomic , the world electrical energies agency ( iaea ) .
Pakistan's nuclear arsenal creates concerns.