LAHORE, Pakistan – Pakistani police say three time bombs have exploded during a Shiite religious procession in the eastern city of Lahore. At least six people are dead and 20 wounded in the blasts and subsequent stampedes.

The explosions took place amid a traditional mourning procession for one of Shiite Islam’s most respected holy men.

Senior police officer Zulfiqar Hameed said the blasts came from low-intensity time bombs.

Footage of the first explosion shown on Geo television showed a small blast erupting amid a crowd of people on the street followed by a large plume of smoke.

Sunni extremists have targeted Shiite Muslims in the past, arguing they are not true Muslims.