The accident happened when the victims handled a device after scouring an uninhabited area west of the city for scrap metal, according to the police.
The victims aged ( 9-12) were unaware of the nature of the device, which they had brought home to extract its copper.
It had exploded in front of them.
“Seven of the children died instantly while the another one passed away while being rushed to the Omdurman hospital for treatment” the statement added .
The Al-Fatah area was the site for a military training exercise held last month.
The police say they have opened an investigation into the tragedy