Postpublished at 13:53 British Summer Time 20 September 2015
Ben Edwards
BBC F1 commentator
"The brakes take a pounding in Singapore. The cars will be very marginal when we get towards the end of the race."
Vettel wins, Hamilton out after losing power
Ricciardo 2nd, Raikkonen 3rd, Rosberg 4th
Member of crowd walks on to circuit
Verstappen refuses to obey team orders
Button and Maldonado collide - bodywork just misses Sainz
Massa and Hulkenberg crash
Hulkenberg, Massa, Hamilton, Alonso, Button out
Gary Rose
Ben Edwards
BBC F1 commentator
"The brakes take a pounding in Singapore. The cars will be very marginal when we get towards the end of the race."
Engineer to Jenson Button: "The car is very hot - avoid a tow where possible."
Button: "Anything else?"
Jenson Button is certainly having an eventful race. He is 15th, but has Carlos Sainz behind him and closing, and now an issue with his McLaren...
A quick decision from the stewards as Nico Hulkenberg is given a three-place grid penalty for the Japanese GP.
Lewis Hamilton: "Vettel's backing up Ricciardo, I think."
The gap between leader Sebastian Vettel and Daniel Ricciardo is getting a little smaller, dropping to under one second on lap 22.
Ben Edwards
BBC F1 commentator
"Rosberg's priority is to get past Hamilton to close the 53-point gap in the championship but he is under pressure from Sebastian Vettel for second place, especially with Vettel leading this race."
Engineer to Lewis Hamilton (currently fourth): "Okay, Lewis, we are going to have to look after this tyre set - try to eek it out as long as we can."
Lewis Hamilton will want to get on that podium, but he also needs to be mindful of Nico Rosberg, who will be desperate to score more points than his Mercedes team-mate in Singapore and chip away at Hamilton's lead in the championship.
Rosberg is just over a second behind Hamilton.
No surprise to see that the incident between Felipe Massa and Nico Hulkenberg is under investigation.
The safety car heads in and we are back racing. Sebastian Vettel once again holds his place at the front of the pack.
Daniel Ricciardo to engineer: "How is our pace?"
Engineer: "We were about three or four-tenths quicker than Ferrari when we stopped. Other people nowhere close."
Max Verstappen is unlapping under the safety car conditions and Lewis Hamilton has a little pop at his team, saying they should tell him when a car is coming through as he claims the Toro Rosso nearly hit him.
This has worked out well for Lewis Hamilton, who is fourth and in prime position to pounce for a podium once the safety car heads in.
Reports are that it is clear in Sector One, so shouldn't be too long before we are racing again.
Gavin Richardson: Pit lane exit the cause of Hulk incident. Hulk more to blame for incident. Should have given more space
Stuart: I love F1, but I really can't see the point of having tracks where overtaking is virtually impossible, overtaking makes it exciting.
Ray King: Poor Dani Kvyat. Lost out massively with that safety car
Here's a picture of the incident when it happened.