Ben Stokes out for 95 as Durham respond to Northants' 450
Rehan Ahmed hits 128 for Leics against Yorkshire
Teenager Tom Norton takes 5-50 as Glamorgan rip through Surrey for 105
Champions Notts lead by 273 runs at halfway at leaders Essex
Wickets tumbling in clash between Sussex and Hampshire; Warwickshire get into lead over Somerset
Division Two: Derbyshire v Lancashire; Kent v Middlesex; Worcestershire v Gloucestershire
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Suthar lbw b Ogborne 28 (Somerset 208 v Warks 321-9)
Manav Suthar decides it's time to go and takes Alfie Ogborne for successive fours.
Ogborne gets his revenge with a full ball which shapes in a little and smacks Suthar bang in front.
That's three wickets for Ogborne and he is delighted!
Porter c Haynes b O'Neill 1 (Essex 8-2 v Notts - trail by 265 runs)
The old night-watchman plan fails.
Jamie Porter flashes an edge straight to Jack Haynes at third slip off Fergus O'Neill.
A catch to go with his century for Haynes.
Trouble at the mill for Essex.
Charlie Bennett is the second night-watchman for Essex!
Glamorgan v Surrey 11-0 f/o - trail by 242
What a gorgeous delivery by Tom Norton who has enjoyed a fabulous day already.
He beats the outside edge of Dom Sibley, and to add insult to injury, Surrey run through for a bye.
Derbyshire 364 v Lancashire 161 & 97-3
A half-century for Harry Singh as he blocks the latest Rory Haydon delivery.
That's 50 balls faced now by the Lancashire batter. He's on four!
Essex 3-1 v Notts - trail by 270 runs
Notts' first innings hero Liam Patterson-White opens the bowling with his left-arm spin.
He took a career-best 6-43 the first time around.
Davey c Wharton b Bess 0 (Leics 449-8 v Yorks 185)
Short and not so sweet.
Josh Davey has no intention to die wondering and marches down the pitch to his third ball from Dom Bess.
He is looking to launch the Yorkshire spinner into orbit but skies it to James Wharton at long-off.
Ajaz Patel is Ben Green's next partner with the lead at 264.
Thompson lbw b Ogborne 31 (Somerset 208 v Warks 304-8)
Lovely ball from Alfie Ogborne who angles one into the pads of Jordan Thompson.
That looks to be hitting middle and leg. And Thompson has gone for a valuable 39-ball 31.
The lead is 96.
Walter b O'Neill 0 (Essex 2-1 v Notts - trail by 271 runs)
Disaster for the home side.
Second ball of the innings (technically the first as the opening delivery was a no-ball) and Fergus O'Neill gets one between Paul Walter's bat and pad and clatters the top of off-stump.
What a day Notts are having!
Jamie Porter is in as a night-watchman.
Sussex v Hants 168-7
Andrew Neal is now at the crease for Hampshire alongside Felix Organ and it looks like they know each other's roles already.
Neal will be the blocker and Organ will look to score wherever he possibly can.
Neal eventually noodles a single to get off the mark and Hampshire's lead reaches exactly 200 - an important landmark in this game.
Essex 0-0 v Notts - trail by 273 runs
Here we go then for the second innings.
There are six overs remaining in the day at Chelmsford and Essex need to get through them without losing a wicket.
Notts can go on the attack with their huge lead in the bank.
Evison run out 55 (Leics 448-7 v Yorks 185)
Joey Evison pushes into the legside and Ben Green calls for a single.
Evison is not so sure and his hesitation costs him as a direct hit from a sub fielder ends his innings.
Josh Davey comes to the crease.
Somerset 208 v Warks 304-7
Manav Suthar steps down the pitch and clonks Archie Vaughan for six.
A stunning shot which takes the Bears to a second batting point.
Leics 448-6 v Yorks 185
Ben Green plays the second ball of the 110th over into the offside for a single before Joey Evison steers Hassan Ali into the legside for two more.
Three needed from three balls.
Evison wafts and misses, and then fails to connect with a ball down the legside. Three from one.
Hassan sends the final ball wide of off-stump and Evison can only get a toe end on it for one more, so the Foxes will settle for four batting points.
Glamorgan v Surrey 8-0 f/o - trail by 245
Tom Norton is back into the attack for Glamorgan and is testing Dom Sibley outside his off-stump already.
Norton then runs in to Sibley once more but Sibley pulls out of the way at the last second because Rory Burns has dropped his bat at the non-striker's end in Sibley's eyeline.
Safe to say it has not been Burns' day today.
Leics 444-6 v Yorks 185
Just a couple of singles off Hassan Ali's latest over as the floodlights are switched back on at Grace Road.
Just two overs for Leicestershire to find the 12 runs needed for that fifth batting point.
Ben Green gets four of them with an outside edge off Matt Revis which flies past the diving first slip. Another slip, skip?
A backfoot punch for a single and then a short ball that sails high over Joey Evison and is signalled a wide. Six needed off six balls.
Stone c Snater b Harmer 30 (Essex 184 v Notts 457)
The Essex bowlers can finally put their feet up and hope their batters can make a better go of things second time around..
Simon Harmer has a five-fer.
Olly Stone goes for a massive heave-ho and top edges to the waiting Shane Snater in the covers.
Harmer finishes wuth 5-165 from his 45 overs.
Notts lead by 273 runs.
Durham 223-5 v Northants 450
Graham Clark slaps a full toss away to the boundary to move to 27 not out.
He and Ollie Robinson have added 21 runs for the sixth wicket so far.
Derbyshire 364 v Lancashire 161 & 83-3
Marcus Harris squirts an Anuj Dal ball down past gully to the rope for four.
The Australia batter now has 26, while Harry Singh's dead-batting continues with two off 39 balls.
There have been 38 overs in this innings, just under two less than the first knock yesterday.
Somerset 208 v Warks 291-7
A good tumbling stop on the rope from Josh Shaw denies Jordan Thompson another boundary.
The single off Archie Vaughan takes Thompson to 28 from just 32 balls.
Not exactly destructive but he's found more fluency on this pitch than any other batter has managed in this match.
The lead has quickly risen to 83.
Potgieter c Price b Carson 55 (Sussex v Hants 157-7 - lead by 189)
Such a crucial breakthrough for Sussex! The seventh-wicket partnership worth 91 has finally been broken.
It's been a vital knock by Delano Potgieter but on this occasion he picks out Tom Price who makes a brilliant low catch around mid-wicket region.
The South African's gritty innings included five boundaries and came off 129 balls.
Hampshire's lead creeps towards 200.
