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Group 1 results: Essex beat Durham by 44 runs, Warks beat Notts by three wickets, Worcs draw with Derbys
Group 2 results: Hants beat Middlesex by 249 runs, Glos beat Somerset by eight wickets, Surrey draw with Leics
Group 3 results: Yorks beat Kent by 200 runs, Lancs beat Northants by 206 runs, Sussex beat Glam by eight wickets
Lancashire 305 & 296-7 beat Northamptonshire 177 & 218 by 207 runs
Luke Procter goes and Lancashire have won!
Matt Parkinson claims the final wicket as Procter falls for a brilliant, battling 93 from 294 balls.
There was about 50 minutes left in the contest but he and Ben Sanderson just couldn't quite see it out. A super effort, though.
Surrey 672-8 dec v Leicestershire 375 & 295-3
And that'll be that at The Oval as the two captains decide to shake on a draw.
Hassan Azad finishes 144 not out, with Lewis Hill unbeaten on 69.
The points will be shared.
Nottinghamshire 273 & 260 v Warwickshire 201-9 & 297-7
Image source, Rex FeaturesHuge!
A chink of light for Nottinghamshire as Stuart Broad has England's Olly Stone edging behind.
A brilliant innings from Stone, his highest in first-class cricket for Warwickshire.
Danny Briggs is the new man in. Notts need three wickets. Warwickshire need 36 runs.
Glamorgan 285 & 349 v Sussex 481 & 114-2
And Sussex are also charging towards victory, only needing another 44 from 18 overs.
Nottinghamshire 273 & 260 v Warwickshire 201-9 & 296-6
Twenty overs to go, Warwickshire only need 37.
Tim Bresnan has 54 not out. Olly Stone has 43.
England legend Stuart Broad returns to the attack for Nottinghamshire.
Northamptonshire 214-9, Lancashire need one more wicket to win
Ben Sanderson has done a decent job so far, surviving 15 deliveries.
The umpire has just called for the final hour of play, with a minimum of 15 overs to be bowled.
Luke Procter has moved onto 93 from 291 balls.
Derbyshire 390 & 312-5 dec v Worcestershire 305 & 167-6
Ben Cox has reached a classy 50 off 83 balls.
He's looked unfazed alongside Ed Barnard (35 not out) as Derbyshire search for wickets.
There's around 21 overs still to be bowled.
Kent 265-9 & 244-9 v Yorkshire 379 & 330-5 dec
I'd forgotten, Kent are without Harry Podmore who was ruled out with a side strain.
It looks like Yorkshire had also initially forgotten but they're celebrating now. Nine wickets is enough for a 200-run win.
Kent 265-9 & 244-9 v Yorkshire 379 & 330-5 dec
Make that one wicket required.
David Willey has figures of 5-61, trapping Miguel Cummins leg before.
Kent 265-9 & 244-8 v Yorkshire 379 & 330-5 dec
Kent are holding on - just.
Grant Stewart is unbeaten on nine, Miguel Cummins has 12.
Yorkshire need two wickets in a minimum of 19 overs.
Glamorgan 285 & 349 v Sussex 481 & 96-2
Aaron Thomason has also reached a half-century, off 84 balls.
Sussex need another 58 runs to win off 28 overs.
Northamptonshire 196-9, Lancashire need one more wicket to win
Luke Procter doesn't appear to have a huge amount of faith in number 11 Ben Sanderson judging by his change in tempo here.
He's just clubbed Matt Parkinson for a huge six to move onto 87, perhaps now with an eye on a century against his former employers.
Nottinghamshire 273 & 260 v Warwickshire 201-9 & 284-6
Image source, Rex FeaturesBrilliant from Tim Bresnan who reaches his half-century off 95 balls with seven fours. His partnership with Olly Stone (38 not out) is now worth 94.
Warwickshire need just 51 to win.
Northamptonshire 196-9, Lancashire need one more wicket to win
Ben Sanderson not only manages to keep out the hat-trick ball but also find a single to get off strike.
There are a minimum of 20 overs to follow this one. Lancashire are one wicket away.
Northamptonshire 196-9, Lancashire need one more wicket to win
Those were the final two balls of Luke Wood's 10th over, leaving Luke Procter the task of keeping out Matt Parkinson's next deliveries balls.
Hat-trick ball coming up next, which Ben Sanderson will face...
Nottinghamshire 273 & 260 v Warwickshire 201-9 & 278-6
Warwickshire need just 55 more runs. They've got 26 more overs before close so time shouldn't be an issue.
Nottinghamshire captain Steven Mullaney turns to spin as Liam Patterson-White enters the attack.
Northamptonshire 196-9, Lancashire need one more wicket to win
Wow, the game has just been blown wide open at Emirates Old Trafford!
Luke Wood dismisses Nathan Buck for 20, caught behind by Alex Davies, before bowling Simon Kerrigan for a first-baller to leave Lancashire just one wicket away.
What an incredible momentum shift. It just goes to show how quickly things can change!
Kent 265-9 & 224-8 v Yorkshire 379 & 330-5 dec
The beginning of the end?
Darren Stevens, so often the hero for Kent, can't get back-to-back half-centuries as edges to Joe Root off the bowling of David Willey.
Willey now has figures of 4-49.
Kent have two new men in at the crease.
Derbyshire 390 & 312-5 dec v Worcestershire 305 & 142-6
Staying on the subject of blocking out until close, Worcestershire aren't exactly going wild against Derbyshire.
A quick single and that's the 50 partnership for Ben Cox (37 not out) and Ed Barnard (23 not out).
Derbyshire have 30 overs to find four wickets.
Lancashire 305 & 296-7 dec v Northamptonshire 177 & 196-7
Image source, Rex FeaturesAlthough he's just ruined his strike rate by hitting Matt Parkinson for four. His sixth boundary of the innings.