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Some exceptional late drama from Somerset follows yet another Surrey masterclass in the T20 Blast this evening.

Thanks for joining us.

Tomorrow the quality keeps on coming where we have eight, yes eight, games to bring to you.

Worcestershire host Derbyshire in Friday's first fixture at the slightly earlier time of 17:30 BST. See you then!

Somerset number eight Roelof van der Merwe is the hero, smashing an incredible 48 off 15 with four fours and four sixes to hand his side an improbable final-over victory.

And he does it in style with yet another shot to the ropes.

Gloucestershire look stunned. Somerset are delighted.

And next ball van der Merwe lofts a HUGE six.

Two needed off four.

Somerset's Roelof van der Merwe slaps Ryan Higgings for four first ball.

Eight needed off five.

We're set for a thriller in a rain-affected affair in Bristol.

Somerset, seven-wickets down, need 12 runs to win off the final over.

Roelof van der Merwe is not out on 34 off 12. He's joined by Josh Davey who has 12 from seven.

Essex collapse from 91-4 to 123 all out as Hampshire take a much-needed victory thanks to some superb bowling.

James Fuller shone with the ball for the hosts, taking 4-30 off his four overs.

With the bat James Vince top-scored for Hampshire (how often have we written those words) reaching 44 off 39 on a green pitch.

Mark Church
BBC Radio London

That's another victory for Surrey by 20 runs this time.

Chris Jordan absolutely outstanding with the ball for Surrey and his captaincy has been superb.

Middlesex got off to a flyer with Steven Eskinazi, as did Jason Roy for Surrey.

It means it's six wins for Surrey out of seven games now and the only game they haven't won was the one that was rained off against Glamorgan in Cardiff.

A really enjoyable evening of cricket at Lord's but you just have to say Surrey are an incredible side.

A blistering 73 off 32 balls from Derbyshire captain Shan Masood set up this victory for Derbyshire against their East Midlands rivals.

Brooke Guest (29 not out) saw them home with eight balls to spare.

Two games down. Three remain.

Our attention now turns to Bristol, Derby and Southampton...

South Group leaders Surrey continue their unbeaten start to the T20 Blast with victory number six and a fifth T20 London derby win in a row.

Jason Roy starred with the bat scoring 81 off 45. Then Chris Jordan was superb with the ball taking 4-31.

Green runs two to move to 45 off 28.

Final ball coming up with Middlesex needing 22 off it.

Two balls to go, Chris Green has the strike on 43 not out. Could he reach a personal milestone?

Somerset have collapsed to 27-4 at Gloucestershire in a 10-over game. They still need 85 off 40 balls after their target was adjusted to 112.

Derbyshire are on course to beat Leicestershire needing 25 off the final three overs with seven wickets in hand.

Essex have struggled to 97-5 at Hampshire and still require 59 off 26 deliveries.

Swing and a miss but Middlesex still manage to scrape through a single.

26 needed off four. Game done.

A single first up.

27 needed off five. Still possible, just.

Eight off the over as Chris Green takes a three from the final ball to move on to 41 not out off 25 and keep the strike.

Chris Jordan will bowl the final over with Middlesex needing 28 runs to win.

Nine balls remain. Middlesex need 33. I can't see them making it.

Reece Topley is bowling over number 19.

He starts with a wide.

Chris Green keeps the strike with a single, he's on 35 off 22 with Middlesex needing 36 runs off the last two overs.

Surrey are punished for a slow over rate and are forced to bring an extra fielder into the inner-ring.