Hamilton took back lead from Norris after pit stops following rain shower
Lead changes hands between all three Britons
Polesitter Russell retired mid-race
Gasly also out
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Live Reporting
Lorraine McKenna
Postpublished at 16:06 British Summer Time 7 July
16:06 BST 7 July
Lap 39/52
Max Verstappen and Lewis Hamilton are into the pits and while Red Bull have gone hards, Mercedes opt for the softs for the eight-time British Grand Prix winner.
Hamilton comes out in third, Verstappen in fourth, and Lando Norris is now begging to come in.
15 laps to gopublished at 16:04 British Summer Time 7 July
16:04 BST 7 July
Lap 38/52
Red Bull want Max Verstappen's opinion on staying out on the intermediate tyre. The Dutchman says yep, he's fine for now.
Oscar Piastri is also getting information from his pit wall. The Australian is told they think the mediums are the best option, which Piastri whole heartedly agrees with.
Sam Bird Formula E driver on BBC Radio 5 Sports Extra
It's a really though sitauation to be in, these intermediate tryes now are shot to pieces for pretty much everybody. It's a case of getting everyone round as best as you can until you can then change to slicks.
And shall I tell you who the master of that is, Lewis Hamilton.
The McLaren of Lando Norris clipped the kerb at the final corner on the previous lap, allowing Lewis Hamilton just to take another nibble out of his lead. With the sun cracking the flags (well, not quite) when will teams make the call for the slick tyres?
Mercedes are saying it was a suspected water issue with Russell so that seems like a water leak in the engine or a loss of water pressure which will lead to an imminent engine failure.
A suspected water system issue is what Lewis Hamilton is told is the reason for his team-mate George Russell's retirement. Such a disappointing end to the British Grand Prix for Russell's home race.
Russell retires from British GPpublished at 15:57 British Summer Time 7 July
15:57 BST 7 July
Lap 34/52
What on earth has happened over at Mercedes? George Russell is told to box and retire the car. The Briton has gone from pole position at Silverstone to out of this race. He's devastated.
Sam Bird Formula E driver on BBC Radio 5 Sports Extra
Piastri is doing a great job, however, they've [McLaren] have got Lando Norris in the lead and that information could be valuable to keep him ahead of the Mercedes of Lewis Hamilton.
While Lando Norris leads the charge in P1, Oscar Piastri has fallen 20 seconds behind his team-mate after pitting a lap later. The Australian is in sixth place with the Haas of Nico Hulkenberg just in the distance in P7. Carlos Sainz is ahead of Piastri but in these. conditions the chance of an overtake is slim at the moment.
That's the difficulty isn't it, part of this circuit has rain and part of it beautiful and sunny now. The pit-lane is blue skies, sunny and no rain at all.