England wicket-keeper Jos Buttler hit an unbeaten 71 to guide the Lancashire Lightning to a four-wicket win over Yorkshire Vikings in their Natwest T20 Blast match at Headingley.

The visitors won the toss and elected to field, but they were put on the back foot by as Australian Glenn Maxwell blasted 18 off the opening over, but he was to fall in the next over to George Edwards.

Joe Root rebuilt the innings and carved out a half-century as he smashed nine boundaries before falling for 55 off 39 deliveries to James Faulkner.

Gary Ballance returned to form as he hit three big sixes in an innings of 31, while Tom Leaning added a quick-fire 22 to propel Yorkshire to 186-6 from their 20 overs.

The Lightning's reply got off to a decent start as Ashwell Prince and Liam Livingstone were both able to find the boundary with regularity.

Maxwell pegged the visitors back as he took the scalps of Prince (32), Livingstone (29) and Ken Brown (21) to leave Lancashire in trouble in the 13th over at 89-3.

However, Buttler took over and smashed a quick-fire half-century to keep his side up with the rate, although they needed 17 off the final over to secure victory. Buttler hit 14 off the first three balls of Tim Bresnan's over before Arron Lilley hit a single off the last ball to win the game.

Durham Jets remain top of the North Group after a late surge in wickets guided them to a five-run victory over Derbyshire Falcons.

Paul Collingwood top scored with an innings of 41 off 31 balls, while Mark Stoneman 28) and Phil Mustard (20) also made decent knocks to guide the Jets to a total 147-7.

Tillakaratne Dilshan took the attack to the Durham seamers and was supported by Will Durston (21) and Chesney Hughes (21), but Scott Borthwick and Ryan Pringle dragged Durham back into the match.

The Sri Lankan fell for 54 and with his departure, Derbyshire were unable to reach their target as John Hastings and Usman Arshad wrapped up the tail to secure the victory for the visitors.

Leicestershire Foxes kept up the pressure on Durham at the top after they beat winless Nottinghamshire Outlaws by six wickets at Trent Bridge.

Alex Hales hit a half-century, which included seven boundaries, while Brendan Taylor scored an innings of 47 to help the home side post a total of 148-7 from their 20 overs.

Jake Ball made early inroads for the Outlaws to put the visitors on the back foot as Ned Eckersley, Mark Cosgrove and Ben Raine all fell cheaply.

However, Umar Akmal blasted the Nottinghamshire attack around the park with an unbeaten innings of 76 off just 49 balls to guide the Foxes to victory with seven balls to spare.

Moeen Ali scored 90 to help the Worcestershire Rapids secure a 14-run win over the Northamptonshire Steelbacks.

Ali blasted 90 runs off just 50 balls, including two sixes, while he was supported by Daryl Mitchell (43) and Tom Kohler-Cadmore (30) as they posted 211-3 in their 20 overs.

Josh Cobb responded with an innings of 80 from 44 deliveries and Richard Levi scored 42, but the Steelbacks fell 15 runs short of their victory target as Saeed Ajmal claimed three vital wickets.

Gloucestershire Gladiators cruised to a nine-wicket win over the Kent Spitfires in the South Division.

The Spitfires were restricted to 156-6 in their 20 overs as Benny Howell recorded figures of 3-18 to keep the home side in check, despite an innings of 31 from Daniel Bell-Drummond.

Gloucestershire powered to victory when Michael Klinger (69*) and Ian Cockbain (54*) both notched rapid half-centuries by blasting the Kent attack around the park.

Chris Gayle smashed an unbeaten knock of 85 to guide Somerset to an eight-wicket victory over Hampshire at Taunton.

James Vince scored 64 not out with an impressive knock and Sean Ervine notched a quick-fire 30 to help their side post a total of 167-3 in their 20 overs.

However, the West Indian continued his imperious form as he blasted eight sixes in his 49-ball innings to get his side over the line, while Peter Trego also scored 51 off 31 balls.

Glamorgan Dragons edged out Middlesex by four runs to claim victory at Sophia Gardens.

Jacques Rudolph top scored for the home side with an innings of 60 from 43 deliveries, while Chris Cook (39) and Craig Meschede (33) also contributed to push their side to a total of 169-5.

Dawid Malan continued his good form with a knock of 70, but Eoin Morgan notched just 15 as his side's chase faltered. John Simpson tried to rally late on, but the home side held out for the victory.

Essex Eagles recorded a six-wicket victory over Surrey at the Oval, despite England captain Alastair Cook being dismissed for just eight.

The home side posted a 169-8 in their 20 overs thanks to a fine innings of 58 from Kumar Sangakkara from 38 balls, while Zafar Ansari blasted four sixes late on to help bolster his side's total.

Cook fell for eight to the bowling of Matt Dunn, but Tom Westley and Ravi Bopara put the visitors in control with half-centuries during a partnership of 115.

Ryan ten Doeschate and James Foster edged their side over the line to claim victory with four balls to spare.

Results in full:
Lancashire Lightning (186-6) beat Yorkshire Vikings (185-8) by four wickets
Durham Jets (147-7) beat Derbyshire Falcons (142-9) by five runs
Leicestershire Foxes (152-4) beat Nottinghamshire Outlaws (148-8) by six wickets
Worcestershire Rapids (211-3) beat Northamptonshire Steelbacks (197-7) by 14 runs
Gloucestershire Gladiators (157-1) beat Kent Spitfires (156-6) by nine wickets
Somerset (173-2) beat Hampshire (167-3) by eight wickets
Glamorgan Dragons (169-5) beat Middlesex (165-5) by four runs
Essex Eagles (170-4) beat Surrey (169-8) by four wickets