Pakistan US ambassador Haqqani resigns over 'memogate'

  Mr Haqqani, a former journalist, has been ambassador to the US since 2008 

Pakistan's ambassador to the United States has resigned over claims that he sought Washington's help against his country's military.

Husain Haqqani is accused of compiling a memo seeking US help to avert a military takeover in Pakistan following the killing of Osama Bin Laden in May.
The ambassador denied the allegations, which were made by a US-based lobbyist.
The row has put already tense relations between Pakistan's civilian and military leaders under severe strain.
Mr Haqqani was summoned to Islamabad last week - he quit after meeting Pakistan's civilian and military leaders on Tuesday.
"I have requested PM Gilani to accept my resignation as Pakistan ambassador to US," he said in a Twitter post shortly after the meeting.
State television said that his resignation had been accepted.
"I have much to contribute to building a new Pakistan free of bigotry and intolerance," Mr Haqqani said in another Twitter post. "Will focus energies on that."
His resignation follows a meeting with President Asif Zardari and the head of the army and intelligence service heads.
A spokesman for the prime minister's office told the Reuters news agency that Mr Haqqani had been asked to resign and there would be an investigation into the memo.
Mr Haqqani, a close ally of President Zardari, has repeatedly denied any role in drafting or delivering the memo.
However, former US Joint Chiefs Chairman Michael Mullen recently confirmed that he had received a secret communication.
But he said that did not pay any attention to it and took no follow-up action.