Surrey lead by 61 against Warwickshire after reaching 211-8 at stumps.
Wes Agar takes 4-60 as Kent bowl out Middlesex for 229 at Lord's.
England's Rehan Ahmed makes 90 for Leicestershire against Glamorgan
Seam bowler Timm van der Gugten takes 6-88 for Glamorgan
Durham enforce follow-on against Derbyshire with a lead of 287.
Sussex's Cheteshwar Pujara 99 not out at close of play against Gloucestershire.
Middlesex 22-1 v Kent 186
WHAT A CATCH!
Jordan Cox at first slip plucks the ball out of the air one-handed after Mark Stoneman's edge off Wes Agar was parried into the sky by Zak Crawley.
Agar gets the breakthrough for Kent and Pieter Malan joins Robson.
Stoneman would love that one back, you can tell, a back-foot flash has ended his day after just seven bals.
Durham 452-9d v Derbys
Brydon Carse hauls Ben Aitchinson for his second six to seal maximum batting points.
And Durham are happy with their lot and declare.
Carse walks off with his maiden ton, 108 not out, now what can he do with the ball?
Warwicks 150 v Surrey 7-0
Four slips in place but Chris Rushworth strays onto leg stump and Rory Burns clips it away for four to mid-wicket - the first boundary of the Surrey first innings.
Middlesex 22-0 v Kent 186
A fascinating opening over from Wes Agar, who beat the bat and was sent to the ropes, almost in alternate deliveries.
Mark Stoneman has 10 from five balls and picked up a couple of fours away through point.
Michael Hogan's first delivery is then clipped off his hips for four by Sam Robson who follows up with a straight drive for four two balls later and a cover drive to the fence two balls after that.
Bright and breezy from Middlesex, 22 from two overs and two openers with a strike rate approaching 200. How modern.
Durham 446-9 v Derbyshire
Martin Emmerson
BBC Radio Newcastle
Brydon Carse is turning into the real deal as an all-rounder. Having reached 91 last week in Cardiff, his highest FC score, he's gone one better today and reached three figures.
He also put on 45 with Matty Potts for the ninth wicket to nudge Durham to within touching distance of a final batting point. Potts was run out for 16 by Ben Aitchison while going for a quick single, so Carse is now batting with Lancashire loanee Matt Parkinson.
It's amazing to see cricket resume before lunch today. The ground staff did a cracking job to get play underway at 12.15pm after so much rain overnight and this morning. We still have an 84-over day scheduled as well.
Durham 441-9 v Derbys
Matty Potts nudges Mark Watts towards mid-on and sets off for a very sharp single.
Too sharp.
Ben Aitchinson moves quickly to his right, gathers and throws down the non-striker's stumps.
Smart piece of fielding and Derbyshire have their third bowling point.
Leicestershire 351-6 v Glamorgan
That'll be a third batting point for the hosts as Tom Scriven squirts one away off Timm van der Gugten into the offside for a couple. Still nearly 20 overs to chase another, too.
Durham 441-8 v Derbys
Image source, Rex FeaturesA maiden first-class century for Brydon Carse!
A superb forcing shot off the back foot through cover for four takes him to 99 and a nudge through midwicket for two brings him a first hundred.
113 balls, 11 boundaries and a six.
What an innings it's been from number seven to help Durham to a commanding first innings total.
Warwicks 150 v Surrey 2-0
Rory Burns and Warwickshire old boy Dom Sibley open up for the defending champions at Edgbaston. Two singles from Chris Woakes' opening over.
Quote MessageWarwickshire are immediately trying to cut out that really strong area for Sibley through the leg-side."
BBC Radio London's Mark Church
Middlesex 0-0 v Kent 186
Now then. What's all this. Kent have been out in the middle playing catch, the umpires are on the field, but there is wet stuff falling from the sky and the hovercover has been hauled into place.
This doesn't look heavy but it's enough to halt Middlesex's momentum, for a little while at least. Sam Robson and Mark Stoneman had come down the steps, then retreated back up them, but they're heading back again now.
The cover is gliding back off the field and the umpires have decided to crack on. A few minutes of delay but nothing to write home about.
Wes Agar takes the new ball.
Warwicks 150 v Surrey 0-0
Eve Jones
Central Sparks captain
Quote MessageConditions look pretty good for batting now and Surrey will be pleased to get out there."
Leicestershire 345-6 v Glamorgan
He's gone. That's a fivefer for Timm van der Gugten who was hopping up and down in appeal after getting one to straighten up and thunder into the pads of Rehan Ahmed who was off balance.
The 177-run stand comes to an end and 18-year-old Ahmed falls narrowly short of his second first-class century. What a knock, mind.
Another bonus point for Glamorgan there too.
Middlesex v Kent 186 all out
Image source, Rex FeaturesAn extraordinary catch from Tom Helm after Grant Stewart top-edges an almight legside clip.
The ball flew into the air, Helm was floating inside the third man boundary but sprinted round behind the stumps, ten yards or so inside the rope, to take a superb diving catch on the run.
Kent fall short of their nominal target but it's better than it looked like it might be this time yesterday.
Warwicks 150 v Surrey
Warwickshire manage to extend their innings for only five overs at Edgbaston following a delayed start as Dan Worrall removes Chris Rushworth with a full-length delivery and finishes with 4-38.
He also took the other wicket to fall after the Bears resumed on 143-8, with Dan Mousley caught at deep mid-wicket for his overnight 55.
How will Surrey fare on this pitch? We will find out very shortly.....
Image source, Getty Images
Warwicks 149-9 v Surrey
Chris Rushworth pulls a short one from Dan Worrall for a single.
Oliver Hannon-Dalby, though, is unable to deal with another rising delivery and it hit by the ball, prompting a visit from the physio.
He's ok to carry on. Unsurprisingly, a bouncer follows but he managed to get out of the way.
Durham 414-8 v Derbys
And the very first delivery from Zak Chappell is cut away for four by Brydon Carse!
Not what Derbyshire wanted after what was in the end a rather chastening day in the field yesterday.
Middlesex v Kent 180-8
Sorry Kent fans.
That's 4-34 for Tim Murtagh as Wes Agar tries to launch him back over his head but gets his timing wrong and skies for Ethan Bamber to scamper across from mid-on to hold a catch falling forward.
Michael Hogan enters the fray for Kent.
Middlesex v Kent 180-8
Wes Agar slashed Tim Murtagh to the deep cover boundary and Grant Stewart hoiked the next ball, from Tom Helm, over mid-on to the ropes.
The word of the day for Kent is aggression. Putting 200 on the board looked miles away yesterday afternoon. They are 20 shy.
Leics 336-5 v Glamorgan
Nick Webb
BBC Radio Wales
Image source, Rex FeaturesIt’s been swashbuckling stuff under the lights from Leicestershire and England teenager Rehan Ahmed as he dominated a major partnership with Australian batter Peter Handscomb.
Ahmed played some crunching cover drives against the old ball, and though there have been a couple of edges through the slip area, he earned his luck by dispersing most of the close catchers quickly even when the new ball was taken.
The pair came together with the game in the balance at 168-5 but the Foxes now look set to top 400 for the third time in a row in the first innings.
In contrast, Glamorgan’s bowling attack is struggling again, and over-reliant on Timm van der Gugten and Michael Neser, despite having more variety than previous weeks.
Middlesex v Kent 166-8
Image source, Rex FeaturesIt was not textbook stuff by any means but Grant Stewart and Matt Quinn added 21 before Tim Murtagh found the gap between bat and pad to dislodge Quinn's off bail.
Wes Agar is the new man, joining his compatriot Stewart in the middle Still 34 shy of what Matt Walker said would make Kent competitive.