WATCH: World's Largest-Ever Firework Weighing As Much As A Car Explodes Into The Record Books

There were gasps from the crowd as the world's largest aerial firework exploded over a ski resort in the U.S. state of Colorado.

The 1,270 kg shell flew 671 metres over the town of Steamboat Springs before it burst on Saturday night, becoming the largest ever fired.

Guinness World Records representatives watched on, verifying the firework was in fact 181 kg heavier than the previous record-holder -- a 1,087 kg firework launched in the United Arab Emirates in 2018.

The firework has set a record as the world's largest aerial firework. Image: AAP

Tim Borden, from Steamboat Springs, led the team that developed the firework over seven years, local newspaper Steamboat Pilot & Today reported.



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He first attempted to set the world record last year, but fell short when the shell exploded inside the mortar -- the tube from which the shells are fired -- without lifting off the ground.

At a ceremony celebrating the world record, Borden's team was congratulated for persevering after its failed attempt.

The successful launch was also hampered by challenging weather, as a winter storm dumped about 0.61m of snow in the area.

With AAP.