Ben Foakes hits unbeaten 112 for Division One leaders against Warwickshire
Liam Dawson makes hundred for Hampshire against Somerset
Second-placed Essex begin game against Middlesex on Monday
Durham - 40 pts clear in Division Two - bowl out Sussex for 266
Derbyshire all-rounder Anuj Dal takes five-for against Yorkshire
Leicestershire dismiss Gloucestershire for 159 at Grace Road
Surrey 259-4 v Warwicks
Cameron Steel continues to grow in confidence and a flowing cover drive brings him four at the end of the latest Will Rhodes over.
He is now 33 not out and has added 72 with Ben Foakes, who has 68.
Northants 212-8 v Lancashire
Image source, Getty ImagesAnother horrendous run out for the hosts.
So similar to the earlier dismissal of Emilio Gay, this time Tom Taylor gets thumped on the pads by Will Williams, who appeals for lbw.
Taylor sets off in pursuit of a leg bye but sees Lewis McManus sending him back when he's already a couple of strides down the track and by the time he's turned and headed back to his crease the bails had been whipped off by Phil Salt after another throw from Dane Vilas.
Jack White joins McManus in the middle. Still well shy of a batting bonus point.
Eight down for Gloucestershire at Grace Road as Chris Wright has Harry Tector lbw with the next to last ball of the 65th over.
Zaman Akhter finds the boundary at the start of the next, but the visitors are 150-8 against Leicestershire.
Dom Bess and Jordan Thompson are looking to get on with it for Yorkshire against Derbyshire at Scarborough. A flurry of fours has taken the home side to 239-7 in the 68th over.
Northants 211-7 v Lancashire
Will WIlliams cannot look at George Bell.
The bowler has found the edge of Lewis McManus' bat but Bell has shelled a routine catch from his widish first slip position.
Can McManus make Bell pay? He's on 24.
Surrey 250-4 v Warwicks
Ben Foakes tucks Henry Brookes into the leg-side for a single and Surrey's total reaches 250.
Warwickshire need three or four wickets in this season, having opted to put Surrey in at the start of play.
BBC WM Sport's Richard Wilford described Will Rhodes as a "creative captain" earlier in the day and he needs to live up to that now in a game they really must win to stay in the title picture.
Worcs 211-7 v Glamorgan
'If you need something doing, do it yourself'.
That, presumably, was Kiran Carlson's thought process - the Glamorgan captain brought himself on to bowl just after tea and he's rewarded as Logan van Beek drills a half-volley back for a low return catch.
The visitors badly needed that wicket to break Worcestershire's seventh-wicket stand of 101.
Hampshire 172-6 v Somerset
Lewis Gregory has bowled beautifully today - as accurate and about as miserly as they come - and now he's added his second wicket.
Ben Brown feathers one behind and that brings James Fuller to the middle to join Liam Dawson.
Hampshire 172-5 v Somerset
Image source, Rex FeaturesLiam Dawson sweeps Shoaib Bashir to the boundary to bring up his half-century from 111 balls.
It's the sixth time Dawson has passed 50 this season, converting one of those into a ton. Hampshire certainly wouldn't mind him reaching three figures again this time.
Durham v Sussex 211-5
Image source, Getty ImagesTom Alsop makes another half-century
Just the one four in this 105-ball knock but a very useful one under the circumstances. Keeping a cool head while others are losing theirs.
When was the last time three Toms at the top of the order all scored a half-century? Answers on a postcard to #bbccricket please.
Durham v Sussex 211-5
Another soft one. He has played nicely but Oli Carter has mis-timed the ball straight to Michael Jones at mid-on, trying to sweep the ball into the leg side. Very avoidable. Another lack of patience.
Fynn Hudson-Prentice joins Tom Alsop.
Yorks 213-7 v Derbys
No half-century for Jonny Tattersall at Scarborough as he edges Anuj Dal to keeper Brooke Guest on 45.
Not the best of shots - he was cashing a wide one - but Dal won't care about that as he completes an excellent five-for.
That is also Guest's fifth dismissal of the innings, one short of his personal best against Worcestershire last summer.
Hampshire 165-5 v Somerset
Back under way after tea and Somerset hand the ball to Shoaib Bashir, who concedes a single to Liam Dawson but then rattles through the rest of his over.
Dawson needs six more for a half-century as he and Ben Brown attempt to rebuild Hampshire's innings.
Northants 206-7 v Lancashire
Streaky four for Lewis McManus who flashes a thick edge off Will Williams past the flying fielder at gully and away to the rope.
He moves onto 20, Northants are 44 shy of a bonus point.
Surrey 237-4 v Warwicks
Danny Briggs resumes for Warwickshire. Three singles collected from that one by Ben Foakes and Cameron Steel as they post a 50 partnership.
Quote MessageIf I was to write a story about a superhero, I'd use the name Cameron Steel."
BBC Berkshire Sport's Rita Green
Surrey 234-4 v Warwicks
A bit of swing for Henry Brookes in the first over after tea at The Oval, but Ben Foakes plays it late and dabs down to third man for four.
The next one is a wide and Brookes then strays outside leg stump and Foakes tickles it away for another boundary.
Inconsistency is the reason Brookes has 0-55 from eight overs so far. Foakes is now 59 not out.
Durham v Sussex 200-4
...in the 66th over. They will want as many batting bonus points as possible to aid their quest for promotion alongside their hosts (barring something pretty extraordinary).
They are 50 runs away with six wickets in hand and 44 overs in which to do it.
Northants 201-7 v Lancs - tea
Scott Read
BBC Radio Lancashire
George Balderson is developing into a fine all-rounder for Lancashire.
Already north of 500 runs for the season, having made his maiden first-class ton a few weeks ago, he's now closing in on 20 wickets for the season.
A former England under 19s captain, he's already skippered the first team in the showcase game against Cumbria before the start of the One-Day Cup.
Lancashire think highly of the 22 year-old who is a stylish batter, with a classical technique and has a very handy habit of breaking partnerships and taking wickets in clusters.
Durham v Sussex 197-4
George Drissell is convinced he's trapped Oli Carter lbw, the ball looks like it's hit him on the back thigh, but Jack Shantry is again unbowed by the massive appeal.
Carter has 22 with Tom Alsop on 46 but the hosts have already cranked the pressure back up after the tea interval.
Division One
Hampshire 164-5 v Somerset
Northamptonshire 201-7 v Lancashire
Surrey 224-4 v Warwickshire
Division Two
Durham v Sussex 198-4
Leicestershire v Gloucestershire 145-7
Worcestershire 202-6 v Glamorgan
Yorkshire 209-6 v Derbyshire
Leicestershire v Gloucestershire 145-7
Harry Tector survives the final over of the afternoon at Grace Road, bowled by Wiaan Mulder.
It's been very much Leicestershire's session, with six wickets taken, and Tom Scriven has superb figures of 3-20 from 14 overs.
Chris Dent fell to Scriven for 51, but Tector is still there on 18.