PORTLAND, Ore. (AP) -- Firefighters have put a lid on a wildfire that threatened houses and businesses near the Central Oregon cities John Day and Canyon City.

Fire officials say the 400-acre fire was smoldering and smoking Thursday morning.

Tanker planes dropped retardant on it, and helicopters emptied buckets of water. An estimated 400 structures were reported threatened. Two outbuildings and a garage were damaged.

It broke out Wednesday after lightning struck Oregon, touching off large fires east of the Cascades.

A fire about three miles north of John Day is burning on about 2,000 acres of grass and woodlands. Fire officials say the city isn't threatened. Lightning is the suspected but not confirmed cause.

A complex of fires on about 38 square miles in the southeastern corner of Oregon was blamed on lightning.

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