Federal investigators have been deployed to Alberta following a deadly helicopter crash Sunday afternoon west of the city of Red Deer. 

In a statement, RCMP said the sole passenger, a 54-year-old woman, died of her injuries. 

The pilot of the aircraft, a 63-year-old man from Lacombe County, was taken by STARS to hospital in a life-threatening condition.

Sylvan Lake RCMP said officers were dispatched to the scene of the crash near a private landing strip in Lacombe County in central Alberta around …