Pakistan's Election Commission on Friday cancelled polls in the constituency in southern Sindh province from which slain former premier Benazir Bhutto was seeking to enter the lower house of Parliament.
"The election process was terminated in National Assembly-207 Larkana-cum-Shikarpur in Sindh due to the death of Mohtarma Benazir Bhutto," the Commission said in a statement.
No fresh date was announced for the polls.
"As such, fresh proceedings will commence after the election schedule for the said constituencies is announced by the Election Commission, in due course of time and in due process of law," the statement said.
Bhutto was assassinated in Rawalpindi after addressing an election meeting on December 27. In the aftermath of violent protests against her killing, the Election Commission postponed the parliamentary polls from Jan 8 to February 18.
Election Commission Secretary Kanwar Dilshad said the remaining candidates would not be required to file fresh nomination papers but fresh candidates would be given a chance to file papers.
Polls were also cancelled in a constituency of the assembly of the North West Frontier Province due to killing of a candidate in a bomb attack.
Miangul Asfandyar Amir Zeb, a candidate who backed President Pervez Musharraf, was killed with eight others when his vehicle was targeted with a remote controlled bomb in the troubled Swat valley last week.