A suicide bombing killed 124 people and injured more than 320 Karachi, Pakistan.

Bhutto returned to Pakistan after eight years of self-imposed exile. She was not injured by the blast and returned to her family safely.

A CNN repoter was on the scene and he said "I can see body parts strewn all over the road. There are dead bodies everywhere. ... It is a large-scale attack, by the looks of things."

Authorities think the suicide bomber was on foot and acted alone.

CNN