A car that was traveling from Keti Bandar to the Makli temple festival in Thatta overturned, injuring about fifteen Hindu visitors.
After being brought to the hospital, five of the injured were given critical care and were sent to Karachi.
Eyewitnesses claim that driving too fast caused the incident.
Other pilgrims came at the scene as soon as the tragedy was reported, and the rescue crew treated anyone who had minor injuries there.