The second day of the official MotoGP test of 2016 is underway at Sepang in Malaysia.

Reigning world champion Jorge Lorenzo was fastest by one-second over Movistar Yamaha team-mate Valentino Rossi on day one.

Retired double world champion Casey Stoner is back on track for Ducati, meaning he is riding alongside the MotoGP race riders for the first time since 2012.

The test was red flagged from 10:40-12:00 after a 290km/h (180mph) accident for Loris Baz on the main straight. The exact cause of the accident is unclear but Michelin has withdrawn the (soft) spec of rear tyre as a precaution. Tyre pressures have also been raised.

Lorenzo later fell at Turn 5, also without injury.

Testing takes place between 10am and 6pm.

Sepang will be resurfaced after this test...

1.=Danilo PetrucciITAOcto Pramac Yakhnich (Desmosedici GP15)2m 0.095s[Lap 9/31]2.=Hector BarberaESPAvintia Racing (Desmosedici GP14.2)2m 0.387s +0.292s[6/7]3.=Jorge LorenzoESPMovistar Yamaha MotoGP (YZR-M1)2m 0.833s +0.738s[8/17]4.=Marc MarquezESPRepsol Honda Team (RC213V)2m 0.843s +0.748s[5/28]5.=Scott ReddingGBROcto Pramac Yakhnich (Desmosedici GP15)2m 1.049s +0.954s[3/26]6.=Andrea IannoneITADucati Team (Desmosedici GP15/16)2m 1.052s +0.957s[9/27]7.=Maverick Vi?alesESPTeam Suzuki Ecstar (GSX-RR)2m 1.421s +1.326s[4/32]8.=Dani PedrosaESPRepsol Honda Team (RC213V)2m 1.475s +1.380s[4/25]9.=Valentino RossiITAMovistar Yamaha MotoGP (YZR-M1)2m 1.604s +1.509s[16/26]10.=Yonny HernandezCOLAspar MotoGP Team (Desmosedici GP14.2)2m 1.644s +1.549s[7/19]11.=Casey StonerITADucati Test Rider (Desmosedici GP15)2m 1.699s +1.604s[10/22]12.=Andrea DoviziosoITADucati Team (Desmosedici GP15/16)2m 1.723s +1.628s[12/13]13.=Pol EspargaroESPMonster Yamaha Tech 3 (YZR-M1)2m 1.992s +1.897s[6/14]14.=Bradley SmithGBRMonster Yamaha Tech 3 (YZR-M1)2m 2.248s +2.153s[20/36]15.=Tito RabatESPEstrella Galicia 0,0 Marc VDS (RC213V)*2m 2.328s +2.233s[5/28]16.=Cal CrutchlowGBRLCR Honda (RC213V)2m 2.331s +2.236s[4/28]17.=Stefan BradlGERFactory Aprilia Gresini (RS-GP)2m 2.372s +2.277s[4/30]18.=Loris BazFRAAvintia Racing (Desmosedici GP14.2)2m 2.611s +2.516s[12/12]19.=Katsuyuki NakasugaJPNYamaha Test Rider (YZR-M1)2m 2.710s +2.615s[4/26]20.=Aleix EspargaroESPTeam Suzuki Ecstar (GSX-RR)2m 2.745s +2.650s[8/17]21.=Alvaro BautistaESPFactory Aprilia Gresini (RS-GP)2m 2.876s +2.781s[4/30]

Key: Rider has a higher position relative to end of previous hour.= Rider has the same position as end of previous hour. Rider has a lower position relative to end of previous hour.

Blue Name = No Concessions.
7 engine changes for the season. Engines must be identical throughout season within same team (development freeze). 5 days of private testing.Black Name = Concessions.
9 engine changes. No engine development freeze. Unlimited private testing.* Rookie

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Fastest day one time:Jorge Lorenzo SPA Yamaha 2m 0.684s

Official Sepang MotoGP records:Best lap: Dani Pedrosa SPA Honda 1m 59.053s (2015)Fastest race lap:Jorge Lorenzo SPA Yamaha 2m 0.606s (2015)

Unofficial Sepang MotoGP record:Marc Marquez SPA Honda 1m 58.867s (2015 testing)