MOSES LAKE - Grant County Fire District 5 firefighters rescued a man from a house fire on Airway Drive Northeast near Moses Lake early Wednesday morning.

A passerby called 9-1-1 at about 5:15 a.m. after noticing the fire inside a single-story manufactured home in the Harvest Manor Mobile Home Park, according to Kyle Foreman of Grant County Emergency Management.

Firefighters responded, entering the residence where they found an adult male who reportedly had no pulse and was not breathing. Firefighters started CPR on the man before he was taken by ambulance to Samaritan Hospital in Moses Lake with life-threatening injuries, Foreman said.

The man has since been flown to Deaconess Hospital in Spokane and Foreman did not know his current status.

The man's name and age is being withheld until his identity can be conclusively determined, Foreman said.

No one else was inside the home when firefighters arrived.

The Grant County Fire Marshal and investigators with the Grant County Sheriff's Office are looking into the cause of the fire, which was confined to the one residence and was extinguished before it consumed the entire structure.

Investigators have not yet said whether or not they believe the cause of the fire is suspicious and details regarding where and how the fire started are being withheld until more is known, according to Foreman.

"The investigators are set up for a long and comprehensive investigation," he said.