Dozens of people have been killed in a stampede that erupted in the Iranian city of Kerman at the funeral procession for Qassem Soleimani, the top Iranian general killed last Friday  in a U.S. drone strike. Kerman is the hometown of  Soleimani.

“So far 40 people were killed and 213 others were wounded in the incident,” an emergency service official said.

There was no information as to what had set off the stampede. Emergency crews performed CPR on others as people wailed in the background, crying out to God.

Soleimani’s death in a drone strike on Friday has sparked calls across Iran for revenge against America, drastically raising tensions across the Middle East. The U.S. government warned ships of an unspecified threat from Iran across the region’s waterways which are crucial routes for global energy supplies.