Washington DC, Sept. 6 -- US government investigators have subjected around 50 members of its military's Joint Staff to polygraph tests as part of an investigation into leaks to journalists, including reports concerning the war with Iran in West Asia and the depletion of critical US munitions stocks, The New York Times reported, citing officials briefed on the move.

According to The New York Times, the investigation represents an extraordinary step by the Pentagon, with investigators asking military officers and civilian employees on the Joint Staff whether they had disclosed classified information to members of the press and whether they had shared information about diminished US munitions stocks.

The polygraph tests were conducted in ...