Former Pakistan President Benazir Butto had named four well-known persons, including Punjab Chief Minister Chaudhry Parvez Elahi and former ISI chief Hamid Gul, as those who pose a threat to her life in a letter to President Pervez Musharraf, a media report said on Wednesday.

In the letter written on October 16, two days before she returned to Pakistan from eight years in self-exile, Bhutto had said she feared there was a threat to her life from Elahi, Gul, Hassan Waseem Afzal, the former Deputy Chairman of the National Accountability Bureau (NAB), and Intelligence Bureau chief Brig (Retd) Ijaz Shah, Geo TV reported.

Meanwhile, the senior detective leading the probe into the suicide attack on former Prime Minister Benazir Bhutto has withdrawn from the case because of her objections, a senior official said on Wednesday.

“The investigation team will be formed anew after Manzur Mughal disassociated himself from the investigation in view of the objections raised by Benazir Bhutto on the chief investigator’s credentials,” said Ghulam Muhammad Mohtarem, the home secretary of Sindh province, of which Karachi is the capital.