A bomb weighing 13 kg was found near a road in the Pakistani port city of Karachi on Friday, and was defused by a bomb disposal squad.
The explosive was found at the Safora Chowrangi, Geo News reported.
Witnesses said the bomb was planted near a school. It was packed in a cement block, and the explosive material included ball bearings, nuts and bolts.
A remote control was also found later.