A man has died after the cannon being used during a gender reveal exploded, spraying shrapnel in all directions over the gathered crowd.
Evan Silva, 26, was part of the assembled friends and family waiting to find out the gender of a baby outside a house in Michigan in the United States when everything went horrendously wrong.
The cannon, which was to signal which gender the baby will be once it is born, exploded unexpectedly, sending dangerous shrapnel flying in all directions.
Silva is thought to have been standing quite close to the cannon when the fuse was lit, but instead of firing everything out of the end of the cannon, the whole thing went up.
Silva was struck by shrapnel in his chest, which is thought to have been what killed him. The accident took place on Saturday 6 February.
According to reports from ABC News, the cannon was supposed to create a large flash and a lot of smoke, however investigators have since discovered the celebration was cut short when it exploded into the crowd instead.
They've also discovered Silva, who was a friend of the expectant parents, was not the man who set the cannon off, despite being stood quite close to it.
Michigan State Police spokesperson Lieutenant Liz Rich said: "[The cannon was] similar to a signal cannon.
"The cast material exploded and sent projectiles in all directions.
"The homeowner reported it had been shot several times. If there aren't regular inspections on a device like this, the cast material can wear away."
It has also been reported that investigators discovered pieces from the exploded cannon had pierced a garage and three parked up cars, with some of it ending as far as 25 feet away from the blast zone.
The case has now been passed onto the county prosecutors by Michigan State Police for a further review.
A fundraising page has been set up to help pay for the 26-year-old victim's funeral.
The organiser of that page, Brent Romanik, wrote: "We lost Evan Silva to a sudden fatal accident.
"He left behind many family members and friends who greatly miss him and are grieving. We are asking for donations to help support Evans family with funeral arrangements.
"Thoughts and prayers are greatly appreciated as well."
So far, the fundraiser has raised $12,680 (£9,200), exceeding its initial $10,000 (£7,200) target, with more than 120 people chipping in.
Featured Image Credit: ABC News