Eight fixtures in Round Five of the season
Essex, Hants & Sussex all bowled out before tea
Durham & Derbyshire only two counties not playing in this round
James Anderson plays first game of season for Lancashire
Northants v Sussex 42-7
Sussex aren't going to be out for a stupidly low score now, but they're still in all sorts of trouble at The County Ground.
Ollie Robinson and Stuart Meaker have steadied things a little since they were 25-7.
Middlesex 48-2 v Gloucs
Gloucestershire have removed both Middlesex openers now with left-arm paceman Matt Taylor getting Max Holden lbw a couple of overs ago.
Good start for the Group Two leaders at Lord's.
Image source, Getty ImagesYorkshire v Kent 66-3
Yorkshire have just picked up a third wicket at Headingley - Jordan Thompson had Joe Denly caught at slip.
Zak Crawley could well be the key for Kent. The England batsman is on 38.
Vince b Overton 6 (Hampshire 42-6 v Somerset)
And another one falls at the Ageas Bowl!
Hampshire captain James Vince chops the ball on to the top of his stumps off Craig Overton as the ball moves back into him sharply.
Hampshire six down now and Overton has his second wicket of the morning.
Walter lbw b Broad 0 (Nottinghamshire v Essex 62-4)
Image source, Getty ImagesStuart Broad picks up his second wicket of the morning and another one of his trademark celeb-appeals comes with it!
And you can't blame him either on this occasion as he has Paul Walter absolutely plumb leg before to a ball that nips back to the left-hander and has him stuck on his crease without scoring.
Essex 62-4 now and up against it.
Warwickshire 90-1 v Worcs
Dan Wheeler
BBC Hereford & Worcester at Edgbaston
After winning the toss and sticking Warwickshire in, Worcestershire captain Joe Leach would've been hoping for more reward.
And with the cheery overhead conditions the visitors know how crucial snaffling every chance is, so when Daryl Mitchell at second slip failed to get his hands near an outside edge from Pieter Malan's forward prod of Ed Barnard, the Pears' frustration grew.
Rob Yates might also have been in trouble had a Barnard delivery not pitched fractionally outside the left-hander's leg stump.
But for all their probing, the Bears look comfortable.
Lawrence lbw b James 14 (Nottinghamshire v Essex 61-3)
Image source, Rex FeaturesAnd another wicket falls for Essex at Trent Bridge.
England hopeful Dan Lawrence departs for just 14 to a ball that skidded through low on him from Lyndon James and wraps him on the front pad.
Bowling point in the bag for Notts after they won the toss.
Yorkshire v Kent 65-2
Zak Crawley punches Duanne Olivier off the back foot in front of point and the ball races away for his sixth four.
The England batsman is up to 37 and looking in good nick.
Dawson c Gregory b Overton 0 (Hampshire 37-5 v Somerset)
And another one falls for Hampshire.
Liam Dawson departs for a duck as Lewis Gregory takes a catch at second slip off Craig Overton.
Hampshire's batting woes continue.
Northants v Sussex 25-7
This is spectacular from Northants.
Gareth Berg has just claimed his third wicket in nine balls by removing Delray Rawlins for a duck.
Sussex are in danger of complete humiliation here.
Hampshire 36-4 v Somerset
All happening at the Ageas Bowl!
Joe Weatherley has had an eventful last 15 minutes for Hampshire.
He's survived a run out, run out his batting partner a couple of balls later, been dropped by Somerset skipper Tom Abell from a tough caught and bowled chance and then he's nicked off two balls later to Steven Davies.
Hampshire in all sorts of bother once again after being put in and they are now 36-4.
Northeast run out 4 (Hampshire 36-3 v Somerset)
And now there is a run out at the Ageas Bowl!
Joe Weatherley may well have been a bit unsettled by that incident earlier in Craig Overton's over as he attempts to take a quick single from one he pushes out into the covers.
But his batting partner Sam Northeast has absolutely no chance of making his ground from a direct hit that comes from George Bartlett's throw.
Northeast on his way for just four and it was not his fault at all.
Lancashire v Glamorgan 36-1
James Anderson has been replaced by Luke Wood after a six-over spell at Old Trafford.
Plenty of threat from the England great, but no wickets.
Hampshire 32-2 v Somerset
Image source, Getty ImagesCraig Overton is flinging himself absolutely everywhere for Somerset at the Ageas Bowl.
He bowls to Joe Weatherley, who defends staunchly on the front foot down the pitch, Overton picks up the ball in his follow through and then tries to run Weatherley out thinking his back foot is out of the crease.
He's safely in but Overton has gone full pelt into the batsman's end stumps in his appeal and given himself a bit of a bruise in the process.
Enthusiastic!
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James Freeman: Northants are bowling beautifully but I fear Sussex have about 10 to many already!! I'm prepping for a County collapse!!
Northants v Sussex 21-6
Image source, Getty ImagesWhat is going on at Wantage Road?!
Sussex captain Ben Brown and Tom Clark are now gone to leave them 21-6.
Ben Sanderson removed Clark lbw and has 4-3. That's four wickets for three runs. Incredible.
Lancs v Glamorgan 35-1; Yorkshire v Kent 46-2
Lancashire and England paceman Saqib Mahmood has made the breakthrough at Old Trafford, bowling Glamorgan opener Joe Cooke for 15.
Roses rivals Yorkshire have also taken a second Kent wicket with Steven Patterson getting Jordan Cox.
Northants v Sussex 21-4
Travis Head's debut for Sussex has not gone well.
The Australia batsman has just been dismissed by Gareth Berg for nine as Sussex's slide continues.
Middlesex 23-1 v Gloucs
Image source, Getty ImagesGroup Two leaders Gloucestershire have got a wicket in the first over after the resumption!
Ryan Higgins pins Sam Robson lbw for 12.
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Rebel Without a Clue: Brilliant start to the season from Glos. some great run chases and top of the table in a group with Surrey in it, lovely stuff. James Bracey for England?