The raid took place after angry parents complained that the businesses appeared to be offering sexual services.

It would mark the first time in more than a quarter century that global demand fell in consecutive years.

Obama has not ruled out the possibility of such strikes, but the action is unlikely to happen soon because intelligence agencies have been unable to identify clear targets on the ground, officials said.

The elder Kim died last December 17 from a heart attack while traveling on his train. His death was followed by scenes of North Koreans dramatically wailing in the streets of Pyongyang.

Todd Brundidge said he and other co-workers encountered a gunman in a hallway on the third floor. The gunman was wearing all blue, he said.