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
Yorkshire 297 & 116-2 v Derbyshire 247
The unluckiest way for a player to be out.
James Wharton goes for a big drive off Alex Thomson, who manages to deflect the ball onto the stumps at the non-striker's end.
Fin Bean is out of his ground and his pleasing knock is over.
Durham 374-5 v Sussex 266
Bas de Leede has proved to be a very handy recruit for Durham and he reaches a 77-ball 50 with a single off Fynn Hudson-Prentice.
Graham Clark is 73 not out at the other end and they have now added 109 for the sixth wicket.
Surrey 396 v Warwicks 161 & 46-5
The start of another Jordan Clark over and he almost strikes again as an inside edge by Dan Mousley just misses the stumps and runs away for four. Anxious moment for the young Warwickshire batter.
Hants 308 & 19-0 v Somerset 137
Hampshire are creeping along, knowing that they don't need to take any risks at all before the day's end.
We've had just 19 runs from the first 10 overs of this innings; Toby Albert has two from 32 balls.
The hosts' lead is now 190.
Essex 279-8 v Middlesex
Simon Harmer attempts a big heave off fellow off-spinner Josh de Caires and fails.
He tries to hit a big shot through the onside, but gets it all wrong and is caught by Toby Roland Jones running back from mid-off.
De Caires now has career-best figures of 7-100.
Staffordshire side Milford Hall have a memorable day out at Lord's as they win the Village Cup to keep the trophy in the Midlands.
Read MoreWorcs 284 90-3 v Glamorgan 170
Jamie McIlroy is doing it on his own with the ball for Glamorgan.
Jake Libby batted really patiently for his 40, scoring just one boundary, but he fends at one just outside his off-stump, and Colin Ingram takes a good catch in the cordon.
Attritional stuff now at Grace Road, with Matt Salisbury and Tom Scriven sending down back to back maidens for Leicestershire.
Gloucestershire are 135-5, a lead of 90, with James Bracey 17 not out and Zafar Gohar on two.
Northants 232 v Lancashire 339-7
Finally Josh Bohannon is out!
A slightly tired shot off the back foot as he thins one through to the wicketkeeper - it possibly keeps a little bit low.
His highest best first-class innings as he batted for 294 balls with 23 fours and a six as he has put his side in an excellent position.
Surrey 396 v Warwicks 161 & 35-5
Chris Benjamin won't remember his first Championship game of the season with any fondness.
Following a first-baller in the first innings, he only manages three runs in the second as Jordan Clark picks up his third wicket.
It was angled in and Benjamin plays an orthodox defensive shot, but plays down the wrong line.
Durham 353-5 v Sussex 266
Fynn Hudson-Prentice strays onto Graham Clark's pads and is whipped away through the leg-side for four runs.
A single ends the over as Clark moves to 60 not out, with Bas de Leede on 44.
Essex 276-8 v Middlesex
Simon Harmer and Sam Cook have added 16 so far for the ninth wicket. They need another 24 to get a second batting point.
We have 10 overs left of this first day at Chelmsford.
Yorkshire 297 & 100-1 v Derbyshire 247
No sooner had Fin Bean brought up the century opening partnership and Adam Lyth gives it away.
He comes down the wicket to Alex Thomson, doesn't get to the pitch and the edge is taken by Wayne Madsen above his head at slip.
Lyth punches his bat in disgust as he walks off. He knows that runs were there for the taking in this evening session.
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Jambarrell: "Thinking of stopping supporting Surrey if they won't play a spinner in this weather. #BBCCricket, external"
They clearly knew what they were doing in terms of team selection for this match.
Loser 92:"#bbccricket, external- if ever Essex needed a big innings from Simon Harmer it’s now. Come on Simon!"
With Surrey seemingly on course for victory, Essex need a win against Middlesex.
Northants 232 v Lancashire 339-6
Josh Bohannon steers one down to deep third for a single to keep this impressive partnership ticking along very nicely.
This seventh wicket stand has completely put this match in Lancashire's hands.
The lead is 107.
Durham 335-5 v Sussex 266
A single off Ari Karvelas takes Graham Clark to 50 for the fifth time this season. It's taken him 101 balls and his sixth-wicket stand with Bas de Leede is now worth 70.
Worcs 284 & 81-2 v Glamorgan 170
Azhar Ali throws his hands at one outside off-stump from Jamie McIlroy, but can only get a thin under edge through to the gloves of Chris Cooke.
Yorkshire 297 & 93-0 v Derbyshire 247
Fin Bean steers one through the offside for one off Anuj Dal to bring up a very pleasing-on-the-eye half-century off 61 balls.
When Bean gets going, he's a hard man to stop - the three times he has reached 50 already this season, he has gone on to make 100.
Gloucs 159 & 126-5 v Leics 204
Harry Tector plays slightly across the line and he is gone.
Gloucestershire lead by 85 and there are 23 overs left in the day's play.
One big partnership, though, and it could mean a tough run chase for Leicestershire.
Surrey 396 v Warwicks 161 & 20-4
In the One-Day Cup, those shots were going to the boundary for Ed Barnard.
Not this time as he fails to keep a cover drive down and Ryan Patel takes the catch.
Is this one going to reach day three? The Division One leaders are rampant.