Seoul E-Prix: Vergne leads Formula E practice in red-flagged FP2

Stoffel Vandoorne kicked off FP2 with a 1m23.076 marker, but that was quickly brushed aside by Envision's Nick Cassidy - who took the times into the 1m22s.

The Kiwi's 1m22.860s was then shuffled out of top spot by Alexander Sims, but Cassidy hit back with a 1m22.529s.

Finding a sudden burst of pace, the DS Techeetahs swarmed the upper echelons of the timing board, with Jean-Eric Vergne going fastest with a 1m22.246s - with Antonio Felix da Costa two tenths back in second.

The Techeetah cars were then usurped by the Nissan e.dams pair, with Sebastien Buemi on the cusp of breaking into the 1m21s, and his team-mate Maximilian Guenther a scant 0.001s behind.

Pascal Wehrlein then got into the 1m21s bracket, doing a 1m21.723s sporting Porsche's one-off black-and-blue livery for the Seoul round.

He held the top of the timing boards for a good few minutes, before Lucas di Grassi bolted to the zenith of the timesheets with a 1m21.661s - but that was immediately beaten by team-mate Edoardo Mortara's lap which was about 0.4s faster.

Vergne then got back on top, posting a 1m21.233s, 0.036s in hand over Mortara as the Swiss driver had a near-miss with Jaguar stand-in Norman Nato - who was coasting slowly and forced Mortara into deft evasive action as he closed the Frenchman down.

Sims then hit the wall on the exit of Turn 21, damaging his rear-left wheel and stopping just ahead of the pitlane entry. This brought out a yellow flag as the session continued, as Sims remained sat in the car.

Edoardo Mortara, Venturi Racing, Silver Arrow 02

Photo by: Andrew Ferraro / Motorsport Images

But with around a minute left on the clock, the session was then officially stopped following Cassidy's grind to a halt after passing the finish line -