Sussex beat Glamorgan by an innings and 98 runs at Hove
Matthew Potts takes 8-66 as Durham beat Derbyshire by an innings and 22 runs
Teenager Thomas Rew hits 127 not out as Somerset set Notts 473 to win
Hasan Mahmud takes 6-69 as Kent beat Lancashire by 140 runs at Blackpool
Yorkshire declare on 246-6, leaving Warwickshire a target of 453
Northants enforce follow-on after bowling out Gloucestershire for 268
Leus du Plooy hits century for Middlesex against Worcestershire
Middx 339 & 100-4 v Worcs 265
After losing wickets either side of lunch Middlesex are trying to regroup.
The first innings top scorer, Leus du Plooy, has been watchful in reaching 20.
Wicket keeper Joe Cracknell has scored 7 and the away side now lead by 174.
Lancs 118-2 - target 424
How many runs do Lancashire need to get to before we starting thinking about the possibility of them chasing down this huge target of 424?
This partnership between Keaton Jennings (42*) and Marcus Harris (28*) is now worth 60 runs.
Lancashire still need another 306 to win. If they did, it would be their highest ever run chase in County Championship history.
Durham 377 v Derbys 118 & 185-5
Will Rhodes continues for Durham but there is only one more over after this one to the new ball.
Martin Andersson is under way with a single.
Leics 187 & 159-3 (f/o) Essex 401
Nick Kelly has showed his intent as he steps down the wicket to an ovepitched ball from Simon Harmer and smashes it back over the South Africa spinner's head for six.
In the next over, Jamie Porter then gets a little extra bounce which Lewis Hill just about deals with. Not entirely comfortably.
Notts 193 v Somerset 310 & 174-5
Archie Vaughan comes to the crease for Somerset and sees off four dots to Lyndon James who grabs a wicket maiden.
J Rew c Clarke b James 50 (Notts 193 v Somerset 310 & 174-5)
Image source, ShutterstockWell James Rew was starting to look good... but it's 50 and out.
It's a bit of a nothing shot by Rew really as he dabbles at one outside off from Lyndon James and nicks off to wicketkeeper Joe Clarke.
James gets James and Somerset are five down with a lead of 291.
Notts 193 v Somerset 310 & 174-4
Somerset's James Rew pushes into the legside from Liam Patterson-White and that single takes him through to 50 from 103 balls.
Rew had to grind it out early on in this innings but he's really finding his feet now. Six fours on the way to the half-century.
Image source, ShutterstockPotts b Parkinson (Durham 377 v Derbys 118 & 183-5)
They didn't need the new ball after all.
Left-arm spinner Callum Parkinson produces a beauty which turns enough to beat the outside edge and flatten Nick Potts' off stump.
Well batted by nightwatchman Potts, though - he was out there for 108 minutes and faced 87 balls for his career-best score, sharing a stand of 84 with Harry Came.
Derbyshire are still 75 behind as Martin Andersson comes out to bat.
Durham 377 v Derbys 118 & 183-4
Harry Came equals his highest score of the season - made against Lancashire at old Trafford - as he advances to 83 not out.
What a disciplined knock this has been. He has now faced 236 deliveries.
Lancs 105-2 - target 424
An expensive over for Kent and Bertie Foreman with 12 from it in the end as Keaton Jennings rocks back and smashes for four through mid-wicket.
Lancashire now need another 319 runs to win. Still eight wickets needed for Kent to claim victory.
Lancs 101-2 - target 424
A delicate shot from Keaton Jennings, but it works well as he paddle sweeps down to long leg off Bertie Foreman and it runs all the way for four.
Jennings attempts the sweep again two balls later but it turns away and catches the edge of the bat but beats wicketkeeper Chris Benjamin as well to go for four.
With that, Lancashire move past 100.
Sussex 521 v Glamorgan 155 & 130-2
Edge......but there's no third slip and that's four runs for Kiran Carlson off Sean Hunt. Jack Carson will continue from the other end.
Leics 187 & 149-3 (f/o) Essex 401
Leicestershire will be looking for another rebuilding job as they resume at the Upstonsteel County Ground after those two wickets at the end of the morning session.
Nick Kelly gets the home side ticking as he pounces on a loose Simon Harmer delivery and drives through deep square leg for his first boundary.
Lancs 93-2 - target 424
Keaton Jennings was immediately over to Harry Finch to check if he was okay after smashing the ball into Finch's helmet at short leg.
They bump fists and now we are ready to continue. Finch is fine and Matt Parkinson can finish his over with two dots.
Notts 193 v Somerset 310 & 166-4
Somerset continue to push on and James Rew has four more, driving down the ground from Liam Patterson-White.
Rew then takes a single into the legside and is now just three shy of a 50.
Middlesex players are wearing black armbands in memory of Middlesex Disability cricketer Jeffrey Kan who's died after a long illness.
Kan played for the England Deaf team and Stanmore cricket club and was well respected and liked by the county.
The women's team are also wearing black armbands during their game against Worcestershire at Bromsgrove.
Lancs 93-2 - target 424
Oof. Keaton Jennings rocks back to pounce on a short-ish delivery from Matt Parkinson and absolutely smashes it towards Harry Finch a short leg.
Finch anticipates it well and manages to tuck his head in and duck, but it strikes him on the top of the helmet.
There will be a brief pause while Finch and the helmet is checked over.
Finch is smiling and appears to be fine.
Phillips c Vasconcelos b Conway 7 (Northants 465 v Gloucs 268 & 60-1 (f/o))
Liam Guthrie's radar goes awry as he sprays oen down the legside.
Cameron Bancroft helps it on its way to the fine leg boundary and moves into the 40s.
But Harry Conway returns and there's the breakthrough!
Joe Phillips aims a big drive to the 13th ball and edges through to wicketkeeper Ricardo Vasconcelos.
A rash shot in the circumstances. Tommy Boorman comes to the crease.
Falconer lbw Taylor 0 (Middx 339 & 83-4 v Worcs 265
Caleb Falconer falls over one from Tom Taylor and is trapped lbw.
Middlesex have now lost four wickets for 26 but with a lead of 156 they remain in a strong position.
Lancs 91-2 - target 424
Back under way as Lancashire continue their mammoth chase of 424. Matt Parkinson bowls the first over after lunch and the first ball is pushed into the offside for two by Marcus Harris.
