A 20-person crew from the United States plus another 22 BC Wildfire Service members will help out in the fight against the St. Mary wildfire.
BCWS officials said the American crew is made up of firefighters from across the country.
They arrived late Thursday night and were briefed on the situation.
The US firefighters were quickly put into action and began working along fire lines by Friday morning alongside BCWS members.
Meanwhile, another 22-person BCWS crew arrived on Friday to help support containment efforts.
Cranbrook Fire and Emergency Service officials said structural protection teams have arrived from around B.C. to help around the community.
The fire has grown to about 2,600 hectares since it was sparked by downed power lines on Monday.
The rapid growth was aided by strong winds that swept through the area.
So far, seven homes in ʔaq̓am have been destroyed by the blaze.
All evacuation orders and alerts are still in effect.