Police said a black Ford Focus travelling on the A47 near Wisbech left the road and ended up on its side near a ditch.
The road was closed in both directions for several hours but has now re-opened.
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Temperatures are predicted to reach a high of 23C.
Hunt accused companies of "turning a blind eye" to a generation of children "exposed to harmful emotional side effects" of social media.
Top temperature 24C/75F.