WASHINGTON - The United States is monitoring the situation after Pakistans Supreme Court barred former ambassador Husain Haqqani from leaving the country while he is investigated over allegations that he sought US help in May to reign in the military, a State Department spokesman said Thursday. But spokesman Mark Toner refused to offer any comments, saying it was a 'domestic issue. Haqqani resigned after he was alleged to have sent a memo for help to the then-chairman of the US Joint Chiefs of Staff Admiral Mike Mullen. Haqqani denies the allegations. Were certainly monitoring the situation. Its right now, we view this as a domestic issue, he said in reply to a question at the regular noon briefing. But I think Ambassador Haqqani has himself said that one of the reasons he returned to Islamabad was to have this kind of investigation. So well continue to, obviously, monitor it, but we dont have any particular comment, Toner added. To another question whether the Pakistan government has notified to the State Department its decision to appoint Sherry Rehman as ambassador to the US, Toner said he was unaware of it. Im not sure that we have, frankly. I dont know.