Pakistani wicketkeeper Zulqarnain Haider, who mysteriously disappeared from Dubai and went to UK, has announced retirement from the international cricket, adding that the decision to this effect has been taken in the wake of the intimidations, report said on Tuesday. He said that he is writing to the Pakistan Cricket Board in this regard. He said that he was receiving threats from an unknown person and thus he decided to leave Dubai immediately and went to London where he is seeking an asylum.