The first blast happened at 15:04 local time as people were packed on a road leading to a cemetery where the tomb of General Soleimani is located.
The second blast occurred 13 minutes later.
Reports suggest that at least 103 people, including children, have died in the twin blasts, and 188 others have been wounded.
Provincial officials have described the incident as a terrorist attack.
Meantime, sources told a Tasnim reporter in Kerman that the perpetrator or perpetrators of the attack have exploded two explosive-laden suitcases with remote controllers.
Aso, dozens of people were injured in a stampede in a state of panic after the blasts.
