(Prineville, OR) -- Fire officials say they've stopped the spread a new wildfire that forced evacuations in Central Oregon yesterday. The Central Oregon Daily News reports crews have stopped forward progress on the Grizzly Flat Fire southeast of Madras. The blaze now stands at 624 acres. Several homes northwest of Prineville were evacuated yesterday after the fire started and quickly burned through grass, brush and juniper. The cause of the fire is under investigation.