A girl died on her first birthday after she and her 11-year-old sister were run over by an alleged drunk driver as they were crossing the street on their way to the park in New Hampshire.

Justin LaClair, 23, stands accused of aggravated driving while intoxicated, reckless conduct and conduct after an accident — the Granite State’s version of a hit-and-run offense — the Manchester Police Department said in a press release.

Cops responded around 4 p.m. Thursday to the area of Lake Avenue and Belmont Street for a reported collision. Cops found the two girls who were suffering from serious injuries, and paramedics rushed them to the hospital. Moments later, officers learned of a second crash involving the same car a few blocks away. LaClair was there and tried to walk away from the scene but was arrested, cops said.

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Manchester police announced Rebecca Cole died at a Boston hospital on Saturday — her first birthday. Her sister continues to receive treatment from her serious injuries at a hospital.

Citing court documents, the New Hampshire Union Leader newspaper reports that the baby suffered an apparent broken neck. Her sister reportedly suffered a broken arm, femur and clavicle along with a punctured lung.

LaClair allegedly admitted to cops that he had been drinking and claimed he did not remember hitting the child.

Surveillance video of the crash reportedly showed the girls flying through the air after impact, after which LaClair allegedly sped away.

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“He is going at such a speed that when he crosses over one of the streets, the car actually goes airborne,” Carl Olson, Hillsborough County assistant prosecutor, reportedly said at LaClair’s arraignment. “That is the kind of speed he is going.”

On Sunday, Steven Cole spent Father’s Day lamenting the loss of his daughter and serious injuries to his other daughter.

“I tried to save you,” he said of Rebecca at a vigil, according to Manchester Ink Link.