Gloucestershire have made a wonderful start to their afternoon after a dismal morning.

Having taken their sole wicket with the final ball of the morning session, they've now picked up four quick scalps after the resumption as the hosts begin to wobble.

Marchant de Lange removed Brooke Guest (1) and Luis Reece (3), and Tom Price followed up with the wickets of Anuj Dal (1) and Martin Andersson (4).

Wayne Madsen is closing in on a ton but Derbyshire are making a mess of a strong position. They've lost five wickets for 19 runs.

Melinda Farrell
Sports broadcaster/journalist on BBC Radio WM

Taz Ali has two in two!

What a wonderful little stint this is for the 18-year-old.

It's some over from him. A terrific effort from an incredibly talented young man.

Jayden Seales is last man in for Sussex and the West Indian sees-out the hat-trick ball.

Matthew Potts sinks to the turf in disbelief as Notts opener Ben Slater survives the closest of calls.

Potts is absolutely convinced he's taken the edge on its way through to wicketkeeper Ollie Robinson and runs to the slip cordon to join the celebrations.

Unfortunately for the Durham and England quick, the umpire doesn't agree.

Slater scratches at his mark and we continue.

On and on and on go Essex.

The 500 comes up with Michael Pepper driving a Dan Lawrence long-hop to the cover boundary.

Pepper on to 88 now.

Martin Emmerson
BBC Radio Newcastle

Haseeb Hameed and Ben Slater have given Notts a good start here as they have moved to a 50 partnership inside 17 overs.

There's been little in the way of nervous moments so far either and it looks like it is a good batting track.

It is going to be a late finish after issues with the sprinklers delayed the start by 45 minutes this morning.

I called it Sprinklergate. A listener called in Watergate, but I don't think that's likely to catch on!

Dave Bracegirdle
BBC Radio Nottingham commentator

We've not seen too many straight drives from either side.

There were two or three yesterday but on the whole, there's not been that many pitched up and driven straight back past the bowler.

Haseeb Hameed's eyes light up as Ben Raine serves up one short and wide of off stump.

The Notts batter won't miss out on that and cuts it past point to the short boundary. Meat and drink.

Seven off Raine's first over post-lunch.

Danny Lamb sweeps Tazeem Ali for four - one of those where the batter doesn't even bother running but holds the pose and admires the shot.

This is grim viewing for Bears fans - they are leaking runs and being batted out of the game.

Postpublished at 14:02 British Summer Time 5 April

14:02 BST 5 April

Essex 494-4 v Surrey

Matt Critchley launches Dan Lawrence into the stratosphere for six - stop me if this gets boring...

John Simpson produces another sumptuous drive for four and up comes the 500 for Sussex.

It's followed by another straight drive for four more - Sussex have added 30 runs since the interval - we've had three overs!

Mark Church
BBC Radio London commentator

Without doing anything too spectacular, you can just see that Essex are just beginning to get that scoreboard ticking a little bit more.

There's really nothing going on for the bowlers out there. For the Surrey fielders and bowlers, they haven't done this for six months, so it's getting used to being back out there for this amount of time.

I think in these situations you've just got to keep going.

Matthew Potts gets us going after lunch after a frustrating morning for the Durham attack.

The England fast bowler was a trifle expensive, leaking 25 runs from his six overs, mainly to Ben Slater (32).

Haseeb Hameed leans into the second ball of the session and drives into the offside, picking up three runs to bring up the 50-run opening stand.

Slater milks another single before Hameed guides the ball backward of square on the off-side to move to 22.

Image source, Rex Features

Horrible from Dan Lawrence - a long hop outside Matt Critchley's leg stump is put away for four more.

Surrey looking a little ragged and that's the three-figures up....for Lawrence's bowling analysis.

When I played club cricket if you conceded 100 runs as a bowler you had to buy the team a jug of beer - does that work in the Championship as well?

In comes Ed Barnard and there goes John Simpson again, yet another straight drive for four - he plays that shot so well.

Sussex are not in the mood to declare.