Firefighters responded to a large blaze in the 1100 block of West 11th Street shortly after noon on Wednesday.

"The initial reports were of a well-involved garage that was attached to a residence," Casper Fire-EMS Capt. Patrick McJunkin said.

"First arriving crews did find a heavy fire condition in the garage that was extending into the living areas of the house, but they were able to get some lines put in place very quickly and we were able to get control on the fire shortly after arrival," McJunkin said.

Firefighters were working to expose areas such as cavities and attic spaces and extinguish all fire. This needs to be done before investigators can enter the structure and begin the investigation of the cause of the fire, he said.

The fire entered the living area of the house and there was extensive smoke and some heat damage, McJunkin said.

Two adults were at the home at the time. A man was evaluated on scene, but denied further medical assistance. No pets were involved, either, he said.

Casper Fire EMS responded with five engines and about 20 firefighters, McJunkin said. "It was a pretty significant fire so we were able to put enough personnel on it."

Other responders included Casper police a Wyoming Medical Center ambulance and the Natrona County Firefighter Rehab Unit to monitor firefighters' health, he said.