Pakistan's Supreme Court has given the government's top anticorruption official six days to further investigate corruption charges against Prime Minister Raja Pervez Ashraf.
On January 17, National Accountability Bureau (NAB) chief Fasih Bokhari refused the court's order to arrest Ashraf, saying the investigation was flawed.
Chief Justice Iftikhar Chaudhry ordered Bokhari to return next week to review the evidence.
Ashraf has denied profiting from power projects when he was minister for water and electricity from 2008 to 2011.
Ashraf is one of the 16 officials the court ordered arrested on January 15.
In another development, a top official who had investigated Ashraf's case has been found dead.
Pakistani police say NAB Assistant Director Kamran Faisal was found hanged at his government dormitory in Islamabad and they are investigating whether it is a suicide.
With reporting by AP