A mother and three sisters of an employee working at Iraq's High Electoral Commission (HEC) were killed in their home in Diyala province on Sunday.
The employee, who belongs to the Turkmen minority in Diyala's Hamrin town, was not at home at the time of the crime.
Although no group has claimed its responsibility for the crime, it is believed that ISIS terrorist group carried out this attack after it threatened to attack anyone who assists in Iraq's parliamentary elections.
Iraqi people made their way to the poll stations On May 12 to cast their ballots in the country's first parliamentary elections since the defeat of ISIS terrorist group in December 2017.
Saairun Alliance, which is led by Sadrist Movement leader Moqtada al-Sadr, won the most number of seats in the upcoming parliament.
On May 28, Iraqi parliament has voted in favor of scraping the results of the Iraqi elections abroad. It also decided to revoke results of the elections held in the displaced camps in Salahuddin, Nineveh, Diyala and Anbar.
The parliament said there are proofs elections held
in these areas had been rigged.
Elections results in Kurdistan region and Kirkuk were canceled also by the parliament due to existence of electoral fraud.