Pakistani Shiites have buried 60 people killed in a bombing last weekend in the southwestern city of Quetta but the event was marred by gunfire as both protesters and police fired into the air.
Mourners on Wednesday lowered the bodies, wrapped in white cloth, into a long line of graves dug out at the local Shiite cemetery.
Shiite community leader Qayum Changezi says tensions broke out after angry relatives of the deceased pelted police and government officials with stones.
Police officer Fayaz Sumbal says some of the relatives fired into the air in protest, and police fired into the air to disperse the crowd.
The protesters had been demanding that the army launch an operation in the city to hunt for militants after the bombing that killed 89 people Saturday.