Verstappen is driving through a slip road after an off at the first corner.
Replays show he had a big lock up and went across the tarmac, past the barriers and then tip-toed through a slip road. I remember Hamilton getting beached in gravel there a few years ago....
@@gaurav_2438: He's on his fifth engine this weekend but Mercedes expect it to get to the end of the season.
Nine minutes left in this session.
Kvyat has hopped above Alonso into third. Most drivers setting about their longer, race simulation runs now.
We might see Button getting some running in this session.
Story at the top of this commentary now about Marussia. Very sad development.
Five minutes left in this session.
Magnussen's race simulations in the 1:16s mark.
There are more yellow flags out, with Raikkonen off the circuit. He gets going again and will head back into the pits.
Replays showed he lost the rear end on the run up to the corner where Juncadella went off the circuit. Lots of drivers falling foul of that one this morning, actually.
Gutierrez returns back into the pit lane so it doesn't look like he will complete a timed lap in this session. Still no sign of Button.
He could still set one as he's not pulled into the garage. Button also looks ready to leave the garage.
Nope,. Gutierrez has a steely look on his face as he walks from the car.
Ricciardo and Vettel only 10th and 14th in a quiet first session for Red Bull.
The chequered flag is now out so these drivers will now finish the laps they are off, before we see another trial of the virtual safety car mode.
Very impressive session for Kvyat, Verstappen and Maldonado then.
Raikkonen has has gone off again at Juncao, where he memorably went down a slip road in the 2012 race.
Seeing a replay of a big, big lock up for Hamilton and a huge flat spot on his right front tyre.
Vettel also locking up at the same place. #
Virtual safety car now deployed.
That means drivers must drive at a delta time, keeping the delta positive or incurring a penalty.
This is a reaction to Bianchi's crash in Suzuka, taking the slowing-down process behind the safety car out of the hands of drivers and making sure there is a system in place to ensure a certain speed limit is adhered to.
And with that, that's all we have for this session. Rosberg tops Hamilton, as Button's weekend continues to get worse with just one lap completed in FP1.
Thanks for joining me for this session and please be sure to come back this afternoon.