UPDATE: M6 re-opened to northbound traffic at Charnock Richard Services after being closed by overturned car
A car flipped onto its roof shortly before 10am. Three people managed to get out.
The driver had "very minor injuries", and the others were not hurt, police added.
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Hide Ad"We are working hard to put the car back on its wheels and clear the debris before we re-open the carriageway," the road policing unit said.
Firefighters were also called to the scene.
By 10.20am, Highways England said the motorway - from junction 27 to 28 - had been re-opened, with traffic released.
"There are delays, however these should now begin to ease," a spokesman said.
"Please take care on approach."