Yorkshire's Joe Root and Harry Brook out for 44 and seven against Surrey
James Rew marks his call-up to the England Test squad with 86 for Somerset against Sussex
Ben Kellaway scores 139 for Glamorgan against Warwickshire
Teenager Ben Dawkins hits unbeaten 181 in Kent's game with Durham
Derbyshire's Ben Aitchison takes 5-47 as Middlesex are all out for 177 at Lord's
Ben Sanderson claims 5-47 as Northants dismiss Gloucestershire for 154
Kent 304-1 v Durham
Sam Northeast cuts Callum Parkinson away for a single as Kent earn their second batting point.
Ben Dawkins celebrates by pulling the next one over mid-wicket for four. He is 142 not out.
Somerset 281-4 v Sussex
Shot! Tom Abell is forward to Jack Carson to drive handsomely through mid off for four.
Immaculate footwork there. A single off the next ball and he's on 49.
Archie Vaughan sees out the over.
Drissell st Hurst b Hartley 17 (Lancs v Worcs 245-9)
Tom Hartley claims his 100th wicket in first-class cricket!
George Drissell comes marching down the crease and looks to give it the old heave-ho but it's a swing and a miss and Matty Hurst has the simplest of tasks to take the bails off behind the stumps.
Last man in, Adam Finch.
Middx 177 v Derbys 9-0
This is a special match for Derbyshire opener Luis Reece - the 100th he has played for the club in first-class cricket.
He is out there now with Harry Came as they look to lay a solid foundation for the reply to Middlesex's meagre total.
Toby Roland-Jones and Ryan Higgins are sharing the new ball.
Kent 283-1 v Durham
Image source, Getty ImagesA special moment for Sam Northeast, who reaches his first hundred since returning to Kent from Glamorgan with a single off Kasey Aldridge - and 36th in first-class cricket.
It has taken him 162 balls and the experienced batter has been the perfect foil for 19-year-old Ben Dawkins as they have compiled this big stand, which is now worth 222.
Miles b Procter 1 (Gloucs 124-8 v Northants)
Craig Miles comes and goes in just six balls - and Ollie Price (45*) is in danger running out of partners.
Luke Procter gets his second wicket with a ball that cuts in off the seam back of a length to beat the bat and clip middle stump.
Matt Taylor is in at 10.
Cox b Mulder 31 (Essex v Leics 254-6)
Ben Cox is trapped on the crease by a 'bail trimmer' from Wiaan Mulder which cuts back in off the pitch and pierces his defences.
Cox added 58 with Stevie Eskinazi, who has now been joined by Ben Green.
Yorkshire 250-4 v Surrey
Adam Lyth pushes a single into the off side to move onto 91 not out and Yorkshire have their first batting point.
Lyth's partnership with Jonny Bairstow is now worth 129.
Essex v Leics 251-5
Every now and again Leicestershire produce something which more the norm in limited-overs cricket.
Following Ben Cox's ramp before tea, Stevie Eskinazi steps away to leg and clubs a ball from Wiaan Mulder back over his head baseball-style for four as Leicestershire collect their first batting point.
Williams LBW b Sanderson 13 (Gloucs 123-7 v Northants)
Will Williams is on his way after taking more than a few blows for the team.
Ben Sanderson has his fourth scalp of the innings.
Full, seaming a touch and striking Will Williams in front of middle as he misses an attempted clip to leg.
Craig Miles is in next.
Lancs v Worcs 237-8
A gutsy knock from Matthew Waite who moves to 50 off 98 balls.
Worcestershire have done well to steady the ship after they were reduced to 107-6 after lunch.
The Blaze are 174-7 with 10 overs remaining, chasing a target of 210 to beat Hampshire at Trent Bridge.
Tammy Beaumont made 57 but Bex Tyson has taken three wickets for Hampshire to give them a chance of victory.
Somerset 265-4 v Sussex
Tom Abell is down the track to James Coles, lofting the left arm spinner over mid on for six.
That brings up the 50 partnership with Archie Vaughan off 95 balls.
Gloucs 123-6 v Northants
An absolute beauty from Luke Procter. the ball holds its line, squares Will Williams up and fizzes just past the outside edge of the bat.
Somehow Williams survives the over.
Kent 262-1 v Durham
Sam Northeast tucks one round the corner for a couple off Kasey Aldridge as he and Ben Dawkins reach a 200-run stand from 314 balls.
Kent must surely be thinking now about only batting once in this game, but they have to stay vigilant and guard against a sudden fall of wickets.
Somerset 259-4 v Sussex
Archie Vaughan is forward to Jack Carson, defending the off spinner down the ground.
Maiden over and the new ball is available in a further eight overs.
One would expect Sussex will take it straight away.
Yorkshire 242-4 v Surrey
Cut away really nicely by Jonny Bairstow backward of square on the off side for Yorkshire's first boundary of the innings after tea.
Essex v Leics 240-5
Did that carry? We'll give Wiaan Mulder the benefit of the doubt and say 'not quite' as Ben Cox chips one back towards the South African seamer.
Gloucs 122-6 v Northants
Ben Sanderson (3-23) is back in the attack for Northants and Ollie Price tries to work the ball away through the leg side but is blocked at mid wicket.
A wider off side ball is flayed away to deep third for a single.
One ball for Will Williams to face - and the field is set largely deep. Williams keeps the strike with a single deflected into the leg side.
Northants captain Luke Procter brings himself back on from the Ashley Down Road End.
Ingram c Davies b Barnard 8 (Glamorgan 213-4 v Warwickshire)
With the first ball after tea, Warwickshire captain Ed Barnard strikes!
It is a rather unusual shot selection from Colin Ingram, who looks to pull through the line and bottom edges through to Alex Davies.
Some start to the evening session for the Bears.