The wildfire in the US state of Arizona that killed 19 firefighters over the weekend remains uncontained.

 

　　It has now grown into 13 square miles.

 

　　At least 50 homes have been destroyed and 2-hundred more are being threatened in the city of Yarnell, that's about 80 miles northwest of Phoenix.

 

　　At a memorial service, Arizona Governor Jan Brewer described the deaths in the firecrew as a "dark day".

 

　　The bodies of the men aged 21-43, have been brought to Phoenix for a post-mortem examination.

 

　　Dan Fraijo is Prescott Fire Chief:

 

　　"There aren't any other groups for us to put together, that was our only team, it's been there since the '90s. We haven't thought any further than dealing with the issues that have taken place and dealing with the grief that has taken place."

 

　　About 2-hundred additional firefighters have been brought in to tackle the blaze.

 

　　This brings the total force to about 4-hundred.

 

　　They include other hotshot teams sent from around the US.

 

　　The fire was believed to have been caused by lightening on Friday near the small mountain town of Yarnell.

 

　　In recent days, dozens of people across western US states have been treated for exhaustion and dehydration amid a heat wave.

 

　　Temperatures in some areas have hit 54 degree Celsius.

 

　　This is close to the world's all time high recorded 1-hundred years ago in California's Death Valley.