A human-caused wildfire that was sparked Friday in the Tonto National Forest had grown to 7,225 acres with no containment by late Saturday morning, officials said.

A mandatory evacuation order was issued Saturday for camping areas around Bartlett Lake, fire spokeswoman Dolores Garcia said.

The Mountain Fire was burning about eight miles east of Cave Creek, according to a wildfire incident page.

"‪Please keep our firefighters working to contain the #MountainFire in your thoughts and prayers. Arizona is grateful for their bravery," Gov. Doug Ducey said on Facebook on Saturday afternoon. "‪As a reminder, temperatures are rising and vegetation is drying out. Please stay safe outdoors and use caution."

Officials said the fire started just before noon Friday. Tonto National Forest officials initially estimated the fire was about 30 acres and then updated that to about 300 acres by late afternoon.

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The fire forced closure of Bartlett Dam Road on Friday. Firefighting helicopters were using water from Bartlett Lake to help quell the fire, officials said.

By Friday evening, the fire had grown to more than 5,000 acres and was at 6,200 acres by Saturday morning.

More than 240 personnel were working to contain the fire as of Saturday morning, officials said.

The fire had no containment as of Saturday morning.

Reach the reporter at bfrank@arizonarepublic.com or follow her on Twitter @brieannafrank.

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