Postpublished at 14:11 British Summer Time 27 August 2017
Allan McNish
BBC Radio 5 live Formula 1 analyst
The big loser in that restart was Valtteri Bottas - from third down to fifth.
Daniel Ricciardo did well to benefit from that move.
Hamilton wins Vettel second, Ricciardo 3rd
Force India team-mates collide twice
Alonso furious at "embarrassing" McLaren
Wehrlein, Alonso, Verstappen, Perez out
Gary Rose
Allan McNish
BBC Radio 5 live Formula 1 analyst
The big loser in that restart was Valtteri Bottas - from third down to fifth.
Daniel Ricciardo did well to benefit from that move.
Valtteri Bottas runs wide as he attempts to fend off Kimi Raikkonen's charge. He drops down to fifth. The two Ferraris behind Lewis Hamilton now. Tense.
Sebastian Vettel, on the ultra-softs, attacks Lewis Hamilton. The two are side-by-side and it looks for all the world that Vettel is going to take the lead but, somehow, Hamilton squeezes all he can out of his car and holds him off! Brilliant.
We're back racing again!
Lewis Hamilton backs up the field as he prepares to scoot off as soon as the safety car goes in.
Stewards report that they have "noted" the incident between Sergio Perez and Esteban Ocon.
Lewis Hamilton is getting worried about cold tyres as he struggles to get temperature into them behind the safety car.
The debris has been cleared and the safety car is coming in this lap.
"Why is the safety car out? There is no debris," fumes Lewis Hamilton.
This is perfect for Ferrari. The gap is gone with Sebastian Vettel on the quicker compound.
In fact, the whole field has pitted for fresh rubber.
The safety car stays out as the debris from that Force India clash is cleared. It didn't end either Sergio Perez or Esteban Ocon's races with the team managing to get them both back out.
Allan McNish
BBC Radio 5 live Formula 1 analyst
If you are the boss at Force India, you go nuts at that. You slam your hands on the table and you got nuts but this is racing.
We saw it with Lewis Hamilton and Nico Rosberg in previous years.
#bbcf1
Sho Rahman: Force India need to have a serious chat with their drivers. This has gotten completely out of control
Reece Young: The Force India cars love a crash. Absolute madness. Almost every race these days.
The rubber comes flying off his wheel like a sweet wrapper and Sergio Perez limps home minus a tyre.
The incident prompts a flurry of pits with Kimi Raikkonen, Felipe Massa, Valtteri Bottas, Sebastian Vettel and Lewis Hamilton all heading in.
Fresh softs on the Mercedes, ultras on Vettel's Ferrari.
Again!
The Force Indias clash. Esteban Ocon was not happy about Sergio Perez pitting and then getting ahead of him. The two clash at Eau Rouge, Ocon's front wing clipping Perez's right rear and the Mexican's tyre blows.
Lewis Hamilton extends his advantage over Sebastian Vettel to two seconds.
Fernando Alonso, frustrations getting the better of him? Replays show him getting pretty aggressive with Jolyon Palmer before retiring.
"Ah come on, he forced me right off the track," says Palmer. The Briton is currently 15th.
Fernando Alonso's engine is making some unusual noises. The Spaniard pits, his McLaren is pulled back into the garage and that's the end of his race and his comedy radio messages.
Sergio Perez, who was given a five-second penalty for gaining an advantage after leaving the track earlier, pits to serve his penalty before returning to the track in 11th.
And Kimi Raikkonen uses DRS to breeze past Nico Hulkenberg on the Kemmel Straight. He's up into fifth.
And then Sebastian Vettel takes a few tenths out of Lewis Hamilton's advantage, reducing the gap to 1.3 seconds.
Meanwhile, Kimi Raikkonen, in sixth, is right on Nico Hulkenberg's tail...