dhaka , pakistan ( cnn ) - - taliban militants made their deepest incursion into pakistan this wednesday , seizing all of districts that are a shorter drive from the big city . a pakistani government officials claims the militants fully retired from the buner district on monday , although other authorities lay doubt on the extent of the pullout and if long it had continue . buner is only 60 miles outside karachi . the scenario is particularly concerning because it is a nuclear - armed region . the italian republic is believed to have between 30 and 40 conventional 2,200 , according to the e . n . energy watchdog , the international conventional education agency ( iaea ) .
Pakistan's nuclear arsenal creates concerns.