If a baby is born is born 30,000 feet in the air, what's the nationality?

It may sound like a ridiculous riddle, but this is exactly what officials are trying to figure out after Aida Alamillo, 41, gave birth on a Philippine Airline flight bound for San Francisco.

Alamillo was just eight days shy of her due date when she boarded the flight.

I didn't expect I would have a baby there...it just happened, Alamillo told NBC Bay Area.

Alamillo was cleared to fly by her doctor in the Philippines, but started to feel nauseous and alerted crew she was going into labor. Luckily, three nurses were traveling aboard the plane and were able to deliver the baby in a secluded area of business class.

Four hours from San Francisco, passengers cheered as the crew announced that a healthy baby boy had been born.

Upon landing, the mother was taken to a local San Francisco hospital to rest. She named the baby Kevin Raymar Francis Domingo. The middle name Francis was added in honor of the California city.

Alamillo was ultimately heading to Massachusetts, where her ailing father and sister live. Her sister, Leoni Bauermeister, told MyFoxBoston.com that Alamillo had just received visas for herself and her children to immigrate to the U.S. and was hoping to have the child in the U.S. so the child would be a citizen.

This, perhaps, isn't something she should have reported to the press.

Back to the citizenship question - according to Jennifer Vaughn, of the Center for Immigration Studies, if the baby was born over international waters it usually takes the same citizenship as the parents. However, if the baby was born over U.S. air space it will be considered a U.S. citizen, she told Fox News.

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