Alaska State Troopers say a man from Australia was flown to safety by helicopter Wednesday, after he fell through ice in the vicinity of Arctic Village.

Troopers were informed of 56-year-old Alexander A. Lock’s fall shortly after 11:30 a.m., by a representative of private travel-services firm Global Rescue. The company requested search-and-rescue assistance for Lock northeast of the Chandalar River community, roughly 100 miles north of Fort Yukon.

“[Lock] reported via SOS/satellite phone that he had fallen through the ice and was currently inside his tent unable to dry out and get warm,” troopers wrote. “Global Rescue also contacted North Slope Borough SAR and requested their assistance.”

A borough helicopter crew was able to pick Lock up by 4:30 p.m., troopers said.

“He is alive but the state of his health is unknown,” troopers wrote.

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