“I think taxpayers would appreciate government phones being used for government business,” Gordon Trowbridge, a Pentagon spokesman, told reporters Friday.
"We have asked, as we do periodically, that Defense Department personnel avoid putting the game and similar games on their government-issued mobile devices,” he said.
However, Trowbridge said, "there is no ban on playing" the location-based augmented reality game on Defense Department property.
And he acknowledged that there is a Pokemon “gym” located in the Pentagon’s center courtyard.
Military installations around the world have issued warnings and restrictions on the game.
Joint Base Lewis McChord's official Facebook page recently announced that "Since Pokemon Go hit last week there have been reports of serious injuries and accidents of people driving or walking while looking at the app and chasing after the virtual Pokemon."
"Do not chase Pokemon into controlled or restricted areas, office buildings, or homes on base," the message said.
Army base Fort Carson in Colorado reminded soldiers not to run onto the flight line and several Naval stations have cautioned sailors "to be mindful of their surroundings, both from a safety and respectful stand point," a Navy official said.