Islamabad (Agencies): Pakistan Federal Investigation Agency (FIA) probing the assassination of late Benazir Bhutto has recovered two BlackBerry mobile phones of the slain former Prime Minister.

The agency recovered the phones from a servant at Bhutto's family residence in Karachi, according to media reports on Friday. 

The phones were used by Abdul Razzaq, a servant of Benazir's husband and Pakistani President Asif Ali Zardari, the FIA sources said, adding that the devices will help investigators get some credible clues in the 2007 murder case.  

Benazir was killed Dec 27, 2007 after being shot at an election rally in Rawalpindi. 

The phones may also help the investigators to know if Bhutto received a call after leaving the rally while her vehicle was surrounded by supporters and if the caller asked her to come out of the sunroof and wave to the fans, the investigators said. 

A close aide of Bhutto, who was with her in her vehicle during her last moments, said that people with Bhutto had advised her against looking out of the vehicle but she came out of the sunroof and was shot by a terrorist. 

The aide, however, said Benazir Bhutto had only one BlackBerry at the time of her assassination.  An official said the phones, handed over by Zardari's Bilawal House administration in Karachi 'voluntarily', had been sent for forensic examination. 

'The findings of the forensic examination will be shared with the interior ministry,' FIA Director General Waseem Ahmed told Dawn.  'We were approached by the Bilalwal House staff for the purpose. They had these two phones. There has been no arrest in this connection,' he added.  

The phones were not given to the UN investigators who had submitted their report on the murder to Pakistani government last year.