According to police, 10 kilogramme of explosives material was planted in a pressure cooker and placed on a donkey cart tied near the shrine. The place is frequented by devotees on Thursdays.
"It appears that the target was the worshippers who were gathered here," police official Tahir Ayub told AFP.
The two dead include a child and a 70-year-old man. The injured include five children and five women.
According to Express News correspondent Jahangir Shehzad, the blast was very intense and damaged a wall and a car parked nearby.
Bomb disposal squad has reached the spot and is searching the area for any possible secondary explosives planted by the perpetrators.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ