D1 leaders Surrey enforce follow-on after bowling out Warwickshire for 161
Hampshire's Liam Dawson out for 115 against Somerset at the Ageas Bowl
Lancashire's Josh Bohannon passes 1,000 Championship runs for the season
Middlesex's Josh de Caires takes 7-105 against Essex at Chelmsford
Durham's Alex Lees hits fifth Championship hundred of the season against Sussex
Leicestershire bowled out for 204, but lead Gloucestershire by 45 on first innings
Another one gone at Grace Road as Louis Kimber is bowled by Gloucestershire's Dom Goodman for 12.
Wiaan Mulder hit the final two balls of the previous over from Josh Shaw for four and he is 16 not out with Leicestershire 178-6.
Ben Cox walks out for his first innings for the Foxes.
Yorkshire 297 v Derbyshire 139-3
A legside gift from Matthew Revis and Wayne Madsen helps himself to the four runs he needs to reach his half century.
It is the 82nd of his long first-class career and this one has come off 67 balls.
Hants 308 v Somerset 28-1
James Vince turns to spin after just nine overs of Somerset's reply, and why wouldn't you when your premier tweaker is Liam Dawson? He's having a decent game so far.
His second delivery turns and bounces past Tom Abell's outside edge, which results in a series of 'oohs' and 'ahhs' from the close fielders.
Surrey 396 v Warwicks 23-2
As Mel Farrell regales listeners with tales of interviewing Curtly Ambrose and Richie Richardson in Antigua, another West Indian, Kraigg Brathwaite, whips Kemar Roach through mid-wicket for the first boundary of his innings.
Appropriately, it's Caribbean-style weather in Kennington.
Worcs 284 v Glamorgan 76-5
Colin Ingram has been the standout batter for Glamorgan today, but his promising innings ends on 30.
He flashes at one outside off-stump from Logan van Beek, and Jake Libby does the rest.
It's a first Championship wicket for the Dutchman, and Worcestershire are well on top now.
Essex 101-0 v Middlesex
Spin at both ends for Middlesex with Luke Hollman and Josh de Caires bowling in tandem.
This is Chelmsford on day one, not Hyderabad or Colombo!
A Hollman no-ball sees the Essex score move into three figures.
Durham 103-1 v Sussex 266
Martin Emmerson
BBC Radio Newcastle
Alex Lees is enjoying a fine run of form. He's on 59 today and that means he's scored 758 runs in his last seven FC innings.
This is the ninth time he has reached 50 in the championship this season. He's converted four of those to centuries. He's the leading run-maker in Division Two by some distance.
Having lost Michael Jones for six, in the first over of the day, Durham have recovered nicely. Lees has added 97 with skipper Scott Borthwick, who has 35.
It is a lovely, warm day in CLS. We believe the temperature record for 4 September will be broken today. It is a great day to make runs while the sun shines.
Northants 232 v Lancashire 121-4
Image source, Rex FeaturesLancashire's leading run scorer in the Championship has another 50 to his name - this effort coming off 106 balls.
It's his fifth of the summer to go with two centuries.
And he is holding this first innings together for the Red Rose.
Worcs 284 v Glamorgan 67-4
Kiran Carlson is living dangerously early on here.
A thick outside edge evades the slips and runs away for four, before a similar shot sees him dropped by Jake Libby from the very next ball.
It was away to his right, but Libby will be disappointed that he didn't cling on.
Surrey 396 v Warwicks 14-2
Image source, Rex FeaturesEd Barnard bowled four Surrey batters during their first innings so he knows what that feels like - but he didn't help his own cause by not playing a shot at an angled delivery.
The Warwickshire all-rounder's free-scoring One-Day Cup form is just a memory - for now - as Kemar Roach strikes for the Division One leaders.
Quote MessageThat's the eighth wicket of an extraordinary morning at The Oval."
Melinda Farrell on BBC Radio London
Leicestershire are now out in front against Gloucestershire following the loss of three quick wickets.
They are 166-5 after 47 overs with One-Day Cup star Wiaan Mulder seven not out and Louis Kimber on nine.
The visitors were all out for 159 on day one.
Essex 92-0 v Middlesex
Image source, Rex FeaturesSir Alastair Cook guides one through the offside for a single and that is a very pleasing half-century for the former England captain.
Just the 124th of his first class career - this one off 89 balls.
Worcs 284 v Glamorgan 62-4
Sam Northeast got a life on five, but can't make the most of it, edging Dillon Pennington to Jake Libby in the cordon.
At the other end, Colin Ingram has 28, and he is joined in the middle by Kiran Carlson.
Essex 91-0 v Middlesex
Kevin Hand
BBC Radio London
In what feels like a pre-war Wisden match report, it's quite possible that the British Embassy in Delhi may well play a large part in both the County Championship title and relegation from Division One this year.
Middlesex were expecting to counter the threat of Essex's spinner Simon Harmer with the India off spinner Jayant Yadav at Chelmsford this week.
However despite assurances of monies paid by Middlesex to "expedite" the process, the office didn't release the passport on Friday as planned and Yadav has had to wait until this week to collect it.
As a result, the hosts are now heavy favourites - most especially having won the toss and the visitors will now have to bat last.
The two main rivals of these counties will have a very close eye on this match and indeed will hope for victories for their near neighbours.
Surrey are top of Division One and, with Essex the only team that can realistically stop them winning the title, they will be cheering on Middlesex.
Kent meantime are second bottom, with Middlesex one place above them, and will hope Harmer and co come out on top in this round.
Surrey 396 v Warwicks 9-1
Kemar Roach has a leg gully in place for West Indies team-mate Kraigg Brathwaite.
A couple of singles, then Roach rips one past the outside edge of Brathwaite's bat.
Near thing.
Surrey 396 v Warwicks 7-1
A magnificent inswinger by Dan Worrall and Surrey have their first Warwickshire wicket.
Will Rhodes appeared to be caught in two minds there, but decided not to play a shot and his off stump was spreadeagled.
Not the start the Bears needed.
Ed Barnard is in at three after scoring 616 runs as an opener in the One-Day Cup.
Hants 308 v Somerset 3-1
A brilliant grab from James Vince spells the end of Sean Dickson!
Keith Barker is round the wicket to Dickson, gets one to hold its line, and Vince dives full length away to his right at third slip.
Superb stuff from the Hampshire skipper and Tom Abell is in early.
Durham 72-1 v Sussex 266
Image source, Getty ImagesEasy as you like, Alex Lees pushes Jack Carson for a single and reaches a 72-ball half-century.
It's the ninth time he has gone past 50 in a prolific season for the Division Two leaders.
Surrey 396 v Warwicks 4-0
Game on at The Oval as Will Rhodes and new signing Kraigg Brathwaite come out to start Warwickshire's first innings.
Kemar Roach will bowl the first over and Rhodes slashes his third delivery away for four.
A mini-collapse at Leicester where the home side are now 157-5, but only two behind Gloucestershire's first innings score.
Rishi Patel became Luke Charlesworth's first Championship victim, caught at slip by the bowler's brother Ben for 73.
And Umar Amin followed for a duck in the next over, edging Zaman Akhter to second slip as he tried to drive.