Nico Rosberg is back out on hard tyres. Lewis Hamilton responds by making his first stop but stays on medium tyres. Hamilton returns in the lead with an advantage of 6.7s over Sebastian Vettel.

Image source, Getty Images

Kimi Raikkonen is called in one lap after Sebastian Vettel and he switches to hard tyres. Back out in fifth. Soon after, Nico Rosberg is also told to box for the first Mercedes stop of the race.  

Daniil Kvyat looks to be in a bit of trouble. He is told to make some "urgent" changes to his settings, but he worriedly relays over the radio that it doesn't work. He is currently 12th.

Tom Clarkson
BBC F1 pit-lane reporter

"Jenson Button started the race on hard tyres and has given it up after 11 laps, which is incredibly short. Pirelli's projected life for the hard tyres was 25 laps."

Sebastian Vettel switches to the hard tyre and is out in fifth, with Carlos Sainz ahead of him. The pit stops have elevated Nico Rosberg up to second.

Only the two Mercedes, Kimi Raikkonen, Sainz and the two Manors to make their first stops.

Valtteri Bottas pits from third and stays on mediums. He is back out in seventh. Romain Grosjean does likewise from sixth. 

Meanwhile, Lewis Hamilton is heading off further into the distance up front, the gap is now 7.4 seconds over Sebastian Vettel, who is heading in for his first stop on lap 14.

Marcus Ericsson spins at Spoon from ninth before several drivers decide to head into the pits. Jenson Button, Nico Hulkenberg and Felipe Nasr among them.

Image source, BBC Sport

Dan Phelps: How demotivating must it be for @JensonButton, external with the awful pace of the @McLarenF1, external Will this make his mind up for next year?

Matthew Restaino: Using DRS against the McLarens is just cheating surely?

Mohsin: It's sad to see McLaren struggle so bad.

Matthias Carter: Even though I've been a Button fan since his debut, I really want him to retire and go to WEC. That Honda's embarrassing. 

Daniil Kvyat pits to take on hard tyres and is back out in 18th. Meanwhile, Daniel Ricciardo is 19th after that early puncture, but only the top four are faster than him on the circuit at the moment.

How's things looking for Nico Rosberg? Not great. He is still fourth after a poor start, but Kimi Raikkonen is creeping up behind him. The Ferrari is 1.4s behind.

There's more bad news as Rosberg is told over team radio by his engineer: "Nico, engine temps are high, causing damage."

Not something the Honda fans want to see as Fernando Alonso's McLaren is picked off by the Sauber of Marcus Ericsson.

""Embarrassing. Very embarrassing," Alonso says.

Ryan Blythe: Can't blame Riccardo for that. Massa had a shocker of a start & D Ric got squeezed between Felipe & Raikkonen.

Edward Williamson: I think Massa has passed his worth on the grid.

Elliot Cornish: One-team dominance only works in F1 when both drivers are evenly matched. Rosberg hasn't held a candle to Hamilton this season.  

Max Verstappen loves an overtake and he is steadily progressing through the field. He started 17th and is already up to 13th.

Image source, BBC Sport

Lewis Hamilton is casually told over team radio to build up a 10 second lead at the front. His advantage is quickly building as he now leads by 3.5s, having just set the fastest lap with a 1:39.140.