Somerset collapsed dramatically against Yorkshire on the first day of the Cricinfo Championship match at Headingley when they lost their last six wickets for 32 runs to slump to 257 all out.

They looked to be firmly in charge at 225 for four with Mark Lathwell and Rob Turner having added a careful 111 in 46 overs but both then fell within the space of four balls from the England pair of Craig White and Darren Gough.

Lathwell, who had taken no risks in compiling 65 off 153 balls with nine boundaries, suddenly lost his concentration and played a feeble drive at a harmless ball from White to edge to wicket-keeper Richard Blakey.

Gough had Turner scooped up at second slip by David Byas with his first ball of the next over and with Chris Silverwood pinning Keith Dutch lbw panic began to set in.

Graham Rose was run out by Silverwood's accurate throw from fine leg to Blakey, the batsman failing to complete a second run, and Andy Caddick was run out by a pitch length when he and Jason Kerr found themselves in company at the same crease.

Silverwood, Yorkshire's best bowler with three for 57, ended Somerset's misery by dismissing last man Steffan Jones.

Put in to bat, Somerset had suffered an early blow when Marcus Trescothick, the maker of four centuries already this season, gave a gentle return catch to Ryan Sidebottom.

Piran Holloway became Silverwood's first victim at 63, touching a catch to Blakey, and Somerset suffered a double blow soon after lunch when Michael Burns was brilliantly caught by the diving Byas off Sidebottom and Gough paid back Jamie Cox for hitting him for three fours by rattling his leg-stump from an inside edge.

After Somerset had been routed, Yorkshire found themselves with three overs in which to bat and they closed on two without loss.

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