Sussex completed an innings demolition of hapless Derbyshire thanks to a devastating burst by paceman James Kirtley.

He took the last four second innings wickets in just 11 balls for just five runs as Derbyshire were bowled out for 118 20 minutes after lunch on the third day.

It gave Sussex a third win of the season in Division Two - as many as they managed throughout last season - by an innings and 34 runs and lifted them into third place.

Kirtley finished with figures of 6-45 a week after he took 5-60 in the win over Worcestershire.

He said: "We needed to polish them off so to do it like that was good fun; it was the icing on the cake after what we had achieved in the previous two days."

Derbyshire, resuming on 33-1, lost both Luke Sutton and Matt Dowman to Kirtley in the first three overs of the day.

And any hopes they harboured of saving the game disappeared when a direct hit from Jason Lewry at extra cover ran out Michael Di Venuto after a mix-up over a risky single with Rob Bailey.

Bailey and Graham Welch held up the hosts with a stand of 42 in 20 overs.

But Lewry bowled Welch with the second ball of a new spell and Karl Krikken was lbw to off-spinner Mark Davis in the next over to leave the visitors 107-6.

Kirtley then took centre stage. Bailey, who top-scored with 33, edged to slip, Trevor Smith was caught off the glove trying to get out of the way of a bouncer and Tim Munton was bowled second ball.

Liam Wharton then fell lbw for a golden duck to leave Kirtley on a hat-trick when Sussex head to Trent Bridge next week.

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