Two young children who were the subject of an extensive search by New Hampshire police were found safe at a restaurant parking lot Friday and the father was in police custody, authorities said.

Police had earlier issued an Amber Alert after finding the children's mother dead Thursday night at an apartment in the city of Berlin.

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The children were found at the parking lot in the city of Keene, about 170 miles away, and details of what had transpired were still unfolding, said Michael Garrity, a spokesperson for New Hampshire's attorney general.

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Two missing children have been found alive in a New Hampshire parking lot. (Fox News)

"I can confirm that the kids are both safe and that he is with police in Keene, New Hampshire," Garrity said. "I don't have any futher details yet."

Authorities had issued the Amber Alert just after 4 a.m. for the abduction of 4-year-old Elowyn Duren and 1-year-old Vaelyn Duren from Berlin.

Authorities had said the father, Dusten Mark Duren, 37, was possibly armed and dangerous and shouldn't be approached. He was driving a white 2017 Subaru Impreza with veteran license plates, which was last seen in the capital, Concord. He was described as about 5 feet 10 inches tall and weighing 180 pounds.

Attorney General John Formella said police first responded at about 10:30 p.m. Thursday to the Main St. apartment, where they found the body of 31-year-old Caitlyn Naffziger, the children’s mother.

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Formella said in a release that an autopsy has been scheduled for Friday afternoon and the death is suspicious. Authorities said that before they were found in Keene, the children were last seen in Berlin with their father at about 8 p.m. Thursday.