Keith Barker takes career-best 7-46 as Hampshire bowl out Notts for 155
Tom Lammonby scores 100 as Somerset follow-on against Lancashire
Yorkshire 50-3 at close, chasing target of 224 against Warwickshire
Former England captain Alastair Cook out for 165 for Essex
Hassan Azad and Lewis Hill hits centuries for Leics against Sussex
Somerset 90 & 217-4 v Lancashire 373
Runs are continuing to flow off the seamers at Taunton.
Is it worth putting leg-spin on at both ends?
Matty Parkinson is starting to warm up after being attacked out the game by Tom Lammonby earlier.
Hampshire 226 & 110-4 v Notts 155
Hampshire skipper James Vince goes to 50 from 88 balls with a boundary off Luke Fletcher to third man. It came off a thick edge but Vince was in control of the stroke and the ball landed in front of the diving second slip before running away to the rope.
D2: Northamptonshire 183 & 10-0 v Durham 400
There's a boundary in the final over for Emilio Gay as the Northants openers survive a four-over mini-session at Wantage Road.
It's very much been Durham's day, having extended their overnight 108-4 to 400 all out - with Matty Potts (81) and Liam Trevaskis (77 not out) sharing a stand of 149.
It's a ninth-wicket record for the county against Northants, beating the 87 by Dean Jones and Simon Hughes at Stockton-on-Tees in 1992.
The visitors lead by 207.
Hampshire 226 & 103-4 v Notts 155
Notts need a wicket and call up Luke Fletcher.
The final ball of his over bounces extravagantly but misses the edge of Liam Dawson's bat.
It's a maiden and the Hampshire lead is 174.
Ali st Davies b Wells 50 (Somerset 90 & 199-4 v Lancashire 373)
What a game Luke Wells is having.
Unbelievable from the batsman and part-time leg-spinner who now has 3-1 from three overs.
Azhar Ali, the former Pakistan captain who was brought up playing spin, is completely outfoxed by a ripper and stumped as he loses his balance.
And this all comes for Wells after he scored a century in the first innings.
Somerset 90 & 199-3 v Lancashire 373
Azhar Ali reaches his milestone with a gentle dab down to third-man.
He's been happy to play second fiddle to Tom Lammonby (100), it will be interesting to see if he accelerates now the youngster has gone.
Hampshire 226 & 92-4 v Notts 155
Image source, Rex FeaturesJames Vince and Liam Dawson bring up a 50 partnership and the former celebrates by cutting Steven Mullaney for four.
The start of the next over sees Vince squeeze Joey Evison through square leg for four more and he follows it with a sumptuous straight drive that brings another boundary.
Vince has 37, Dawson 26 and the lead is 163.
Durham have been bowled out for 400 at Northampton - but that's a lead of 217. Matty Potts made 81 and Liam Trevaskis was 77 not out, while Ben Sanderson took 4-41.
Surrey are in trouble on 90-6 at the Kia Oval, despite Hashim Amla's unbeaten 49. They trail Essex by 349.
In Division Three, John Simpson has completed a 97-ball 50 for Middlesex, who are 215-6, a lead of 188 over Worcestershire.
Leicestershire are now 274-2 against Sussex, with Hassan Azad 111 not out and Lewis Hill on 103 - they are 85 behind.
Jordan Cox is now 43 not out for Kent, who are 118-1 against Derbyshire, a lead of 247.
Lyth c Bresnan b Miles 14 (Yorkshire 108 & 18-2 v Warwickshire 155 & 176)
Great bowling from Craig Miles who has Yorkshire opener Adam Lyth edging straight to first slip where Tim Bresnan takes his second catch of the innings.
Gary Ballance joins Dawid Malan (three) in the middle. Balance top-scored for the hosts in the first innings with 58. Yorkshire desperately need him to do something similar again.
The White Rose county need a further 206 runs to win.
Abell c Vilas b Wells 0 (Somerset 90 & 194-3 v Lancashire 373)
Luke Wells isn't doing anything. No spin, this is just a throw down but it gets the Somerset captain.
Tom Abell is out for a pair, chipping a low full-toss straight to midwicket.
A poor, poor shot and suddenly Lancashire are bouncing in the field.
Crawley c Godleman b Dal 68 (Derbyshire 156 v Kent 285 & 116-1)
Zak Crawley fails to convert a fifty into a century for the second time in the game as he hits a ball from Anuj Dal to mid-off. A good knock for his team, though, and they are a commanding 245 in front.
Lammonby lbw b Wells 100 (Somerset 90 & 194-2 v Lancashire 373)
The part-timer gets him!
A fantastic innings comes to an end as Tom Lammonby misjudges the bounce and gets pinned on the back foot.
Luke Wells can add a wicket to his century.
In comes Tom Abell, another Somerset batsman on a pair.
D3: Leicestershire 265-2 v Sussex 359
Great knock by Lewis Hill, who follows partner Hassan Azad to three figures off 114 balls, with a single from the bowling of Sean Hunt. Their partnership is now worth 158.
Hampshire 226 & 69-4 v Notts 155
Did that carry? It may just have done so.
James Vince essays an airy drive to the final ball of Steven Mullaney's latest over and an inside edge escapes the clutches of Tom Moores and runs away for four.
Vince is 25 not out and Liam Dawson has 15.
Somerset 90 & 192-1 v Lancashire 373
And gets there with a six, running down the pitch to launch Matt Parkinson down the ground.
He reaches a brilliant three figures off 99 balls with 12 fours and three sixes.
Lammonby made six for 36 in the first innings, this is a completely different knock.
D2: Glamorgan 309 v Gloucestershire 224-4
The umpires have taken the teams off at Sophia Gardens and that is it for the day..
It's been a good one for Gloucestershire, who picked up the final four Glamorgan wickets for 45 during the morning - with Eddie Byrom last to go for 78 - and then made a promising start to their reply.
Chris Dent went for 75, but Graeme van Buuren is 65 not out and Ben Wells has 23 - the visitors trail by 85.
Hampshire 226 & 61-4 v Notts 155
The lights have been switched off at the Ageas Bowl, so all seems set fair for a full day's play.
James Vince tries to drive Steven Mullaney at the end of the latest over, but it comes off the inside edge and there is no run.
Hampshire are 132 ahead.
Somerset 90 & 172-1 v Lancashire 373
That's the 100 partnership for Tom Lammonby and Azhar Ali after Lammonby moves to 89 with a four.
Frustrating for Lancashire with Somerset now 111 runs away from making the visitors bat again.
D3: Leicestershire 246-2 v Sussex 359
Image source, Rex FeaturesHassan Azad punches teenage spinner Tom Hinley for a single to bring up a 187-ball hundred, his second in the Championship this season.
His third-wicket stand with Lewis Hill - who has 88 - is now worth 138.
D3: Derbyshire 156 v Kent 285 & 93-0
England's Zak Crawley reaches his second half-century of the match - and sixth of the season - off 79 balls by pulling Ben Aitchison for four at Derby.
Kent are 222 in front - will this be the day Crawley converts one into a hundred?