A soon-to-be dad was killed Sunday in New York after the device he was constructing for his upcoming gender-reveal party exploded, police said.

The blast occurred at a home in Liberty, N.Y., killing Christopher Pekny, 28, and injuring his brother Michael Pekny, 27, who was transported to Garnet Medical Center in Middletown, according to a statement from Major James C. Michael of the New York State Police. 

Another brother called the explosion a "freak accident."

MICHIGAN MAN KILLED AFTER CANNON EXPLODES AT BABY SHOWER

The blast occurred at a home in Liberty, N.Y. (New York State Police)

"The freakiest of freak accidents that I could ever imagine," the 34-year-old told the New York Times

The injured brother was listed in stable condition, the report said. 

The family reportedly owns Robin Hood Diner, a restaurant in the Catskills area of New York. The family took to Facebook to thank followers for their "overwhelming display of love and support that you all have shown."

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Authorities said the incident remains under investigation by state police and the bomb disposal unit. 

Earlier this month, a Michigan man, 26, died after he was struck by shrapnel from an exploding cannon at a baby shower in the state, police said

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Last year, fire officials said a smoke-generating pyrotechnic device used at a gender-reveal party ignited a major wildfire in California, which burned thousands of acres. 

Liberty is located about 100 miles northwest of New York City.