All lanes of the M1 are now open after the accident involving five lorries between Junction 25 and 26.
The motorway is still congested with journeys between junctions 24 and 25 taking 40 minutes.
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The pride march got underway at 11.30am this morning in Nottingham.
Sections of the railway line will close from today and not open again until Monday 8th August for upgrade work.
The annual Nottinghamshire Pride festival takes places today, including a minute's silence to remember the Orlando victims.