NatWest T20 Blast: Somerset beat Surrey by six wickets in South Group

Dominic Sibley's second NatWest T20 Blast fifty in two days came in vain as Surrey lost to South Group rivals Somerset by six wickets.

Sibley hit an unbeaten 74 from 55 balls in Taunton, an evening after clubbing 67 from 49 balls against Hampshire on his Blast debut, as Surrey posted 186-4 - Kumar Sangakkara (37 from 19) and Jason Roy (28 from 17) also chipping in.

However, Chris Gayle's 13-ball 31, in which he smoked three consecutive sixes off former West Indies team-mate Ravi Rampaul, set a platform for Johann Myburgh (86no) and Roelof van der Merwe (39no) as Somerset triumphed with four deliveries to spare and Surrey slipped from first place to third.

Elsewhere, Glamorgan defeated Gloucestershire by six wickets in Bristol to hit the top of the division - Dale Steyn (2-21) impressing with the ball before fellow South African Colin Ingram biffed a 30-ball 64.

Sussex Sharks beat Kent Spitfires by four wickets to move second - Ross Taylor hitting 62 after Tymal Mills (3-15) and Chris Jordan (3-18) shared six Kent wickets - while England limited-overs captain Eoin Morgan's unbeaten 59 and Mitchell McClenaghan's 4-33 helped Middlesex down Essex Eagles by 17 runs.

In the North Group, Worcestershire Rapids won their top-of-the-table encounter with Northamptonshire Steelbacks by three wickets.

Ben Duckett (50) scored a half-century for Northants after being dropped on six but Tom Kohler-Cadmore (60) and Ben Cox (42no) ensured the hosts chased down 169-7 and inflicted a first defeat of the season on their opponents.

However, Nottinghamshire Outlaws - who plundered a combined 860 runs in their two Royal London One-Day Cup matches this week - saw their clash at home to Derbyshire Falcons washed out without a ball being bowled.

Birmingham Bears and Yorkshire Vikings suffered the same fate at Edgbaston, leaving the Vikings - who have failed to progress from the group stage in seven of the past eight campaigns - winless from four games.

Lancashire Lightning grabbed a victory, though, overcoming Leicestershire Foxes by nine wickets on the Duckworth-Lewis method in a weather-affected encounter at Emirates Old Trafford.

Leicestershire hit 131-3 from their revised 14 overs - skipper Mark Cosgrove smashing an unbeaten 66 from 47 deliveries - with Lancashire then reaching their target of 74 inside their allotted seven overs following further rain.

Jordan Clark (31no off 12) top scored for Lightning, with Jos Buttler (20no off nine) and Alviro Petersen (23 off 17) the other batsmen to get a hit as the hosts won with five balls in the bank.