Security footage outside of a building in Tehran, Iran shows a man nearly dying in an explosion after tossing a lit cigarette into a sewer.
A small hole in the sidewalk leading to the sewer can be seen near the bottom of the screen.
The CCTV camera first captures a well dressed man dumping what appears to be a bag of rocks into the hole.
Approximately 15 minutes later another man walks up and drops his cigarette. Less than a second passes before the entire sidewalk erupts in a massive explosion.
The concussed man somehow survived and struggled to crawl out of the newly formed crater.
The Persian text along the screen is a warning telling viewers not to toss their cigarette butts in the sewer.