Verstappen on pole; Norris second for McLaren
Perez out in first session; Mercedes through to Q3
Red Bull's Max Verstappen was quickest in both sessions on Friday
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The marshals and the recovery truck have arrived to offer Kevin Magnussen and his Haas some roadside assistance.
Just before the stoppage, Esteban Ocon found a slow-moving Alfa Romeo in his path and had to swerve to avoid it. The Alpine driver, understandably, was not best pleased.
Rosanna Tennant
5 Live F1 reporter
It's very fine rain in the F1 paddock and pit lane area here but I can see umbrellas up in the grandstands. So it's a really tricky one, they need to get these soft tyre runnings in to bank a lap. A bit of pressure now on the drivers to get the job done and make it through to the second part of qualifying.
1. Max Verstappen (Red Bull)
2. Fernando Alonso (Aston Martin)
3. Charles Leclerc (Ferrari)
4. Carlos Sainz (Ferrari)
5. Lewis Hamilton (Mercedes)
Bottom five are Kevin Magnussen, Zhou Guanyu, Logan Sargeant, Valtteri Bottas and Alex Albon. Three minutes are left on the clock.
"Everything is switched off."
No surprise, a red flag is waved. Kevin Magnussen is out of the car.
Kevin Magnussen has stopped out on track. There are cars flying past the Danish Haas driver.
Alex Albon has a lap time deleted for track limits as his Williams team-mate Logan Sargeant bouncing across the wet grass in his bid to make it into Q2.
"Yeah, it's raining everywhere at the moment."
Sam Bird
Formula E driver on BBC Radio 5 Live
Stowe corner looks like such a handful right now.
That is where everyone is losing time.
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Kayleigh: The rain is back at Vale.
Max Verstappen goes back to the top of the timesheets ahead of Fernando Alonso, with Charles Leclerc and George Russell just behind the front two. Sergio Perez is dangling just above the drop zone. The Mexican is in 15th place.
Light rain in the pit lane is the message to Lewis Hamilton from his engineer. Alex Albon has had a storming weekend in the Williams so far but he's languishing down in 19th spot in this Q1 session.
Image source, Getty ImagesGeorge Russell goes quickest in the Mercedes but Fernando Alonso jumps the Briton with a time over half a second faster in his green Aston Martin.
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Nulla Pax: What tyres are Apex running for this session?
Image source, Getty Images16. Kevin Magnussen
17. Nico Hulkenberg
18. Sergio Perez
19. Zhou Guanyu
20. Oscar Piastri
Lewis Hamilton finds himself rooted to the bottom of the timesheets after that hefty spin a few moments ago. The Mercedes man needs to get a lap in sharpish to avoid any disasters.
No problem for the seven-time champ. Hamilton moves up to sixth.
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Matthew Murnaghan: Anyone other than Verstappen or Perez on pole. It's raining so I can expect a mix up! Also what if Williams get a shock front row?
Simon Baker: Given how competitive they are this weekend, if Red Bull make an error in qualifying, I can see Williams springing a surprise.
"Starting to rain."
Sam Bird
Formula E driver on BBC Radio 5 Live
I thought Lewis might have been in the barrier there but he has done well to make it out of the gravel. Crazy times already in qualifying. The Mercedes has been struggling with rear end all weekend.