SFO (CBS SF) – An Alaska Airlines flight headed to Hawaii had to be diverted to San Francisco International Airport Monday afternoon due to a medical emergency, according to authorities.

SFO officials confirmed that the Alaska Airlines flight made an emergency landing because of an elderly passenger in need of medical treatment.

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Alaska Airlines said Flight 843 was scheduled to fly from Seattle to Kona in Hawaii. The plane was two and a half hours into the flight when they learned of the emergency and diverted to SFO, where it landed at about 3:30 p.m.

Airline officials said an elderly female was unresponsive on the plane. Flight personnel needed to use a defibrillator to save her.

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The patient was transported to Mills Hospital. So far the has been no update on her condition.

The jet remains at SFOs Gate 55 and will remain there until a new flight crew can come on board since the original pilots would have been over the maximum flight hours if they had continued.

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The plane is now scheduled to leave SFO at 7:55 p.m.