Dozens of tornadoes killed at least six people, injured many others and left devastating damage in parts of Illinois.

The powerful tornadoes have swept through the  Midwest, destroying buildings and overturning vehicles in the states of Illinois, Indiana and Kentucky.

Brookport, Illinois, in Massac County near the Kentucky line, was particularly hard hit. At least two people were confirmed to have died, and police with dogs were going door to door to search for trapped residents. With roads entering the city closed by debris and downed power lines, Brookport authorities imposed a 6 p.m.-to-6 a.m. curfew.

At least four other people were killed in Illinois, the state Emergency Management Agency told NBC News. An 80-year-old man and his 78-year-old sister were killed near New Minden, according to Washington County Coroner Mark Styninger, and unidentified victims were confirmed dead in Washington city and in Unionville.

Dozens of tornadoes killed at least six people, injured many others and left devastating damage in parts of Illinois

Forecasters said people in 10 states had been at risk. Hailstones the size of tennis balls have been reported.

The storm was so fast-moving – with winds of up to 68 mph – that weather services issued warnings for people not to wait until they saw the weather change.

It is continuing its way east.

November is ordinarily one of the quietest months in the tornado calendar, meaning these storms are unusually destructive for this time of year.

About 80 reports of tornadoes had come in by late Sunday, said the National Weather Service – though a spokesman cautioned that multiple reporting meant the confirmed number might be about 30 or 40.

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