Postpublished at 15:02 British Summer Time 2 October 2022
Leeds United v Aston Villa to come later. We'll have team news for that match in around half an hour.
FT: Leeds 0-0 Aston Villa - Sinisterra sent off
Man City 6-3 Man Utd - Foden fires into top corner for dominant hosts
Haaland scores quick-fire double for brilliant City, before Foden adds his second
Antony curls in from 20 yards before Haaland and Foden complete hat-tricks
Martial scores late double for visitors
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Mantej Mann
Leeds United v Aston Villa to come later. We'll have team news for that match in around half an hour.
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Manny: There is no midfield. I feel like United fans have been saying this for at least 2 years now.
Robin: As continuously said for many seasons now, Man Utd midfield (still) isn’t good enough. Where is Bruno and McTominay to help a defensively unsteady Eriksen that gave an eternity to De Bruyne to play that assist? No pressure no control.
HT: Man City 4-0 Man Utd
Erling Haaland (2) is now the top Norwegian scorer in Manchester derbies in the top-flight. Ole Gunnar Solkjaer netted once for United.
He scored his 12th and 13th Premier League goal of the season, in his eighth appearance - a record for most goals after the first eight games.
Can he become the first player to score three successive hat-tricks in home matches in the Premier League?
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Tim: Wow. The only way to stop Haaland scoring is a transfer to Chelsea... (Chelsea fan)
Mahesh: It's good if Haaland keeps scoring like this, he will get bored soon and leave early rather than wait 2.5 years.
HT: Man City 4-0 Man Utd
Phil McNulty
BBC Sport chief football writer at Etihad Stadium
As a first half of football, that has to be right up there. Manchester City have been simply magnificent.
Pep Guardiola's side were outstanding before but the addition of Erling Haaland puts their threat level on another dimension.
Manchester United have looked defeated from the first minute but what a standard of football we have seen here from Haaland, Kevin De Bruyne and Phil Foden to name but three.
How many can City get? Can Haaland get another home hat-trick?
HT: Man City 4-0 Man Utd
"I can't believe how bad Manchester United have been," says former captain Roy Keane on Sky Sports.
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Larry: Dinner is served. KDB is cooking.
Teflon Don: Man City went and bought a monster. Haaland is a force of nature, an act of God.
Doug: I hope Kane and Son are enjoying that goal/assist partnership record while it lasts. At this rate Haaland and De Bruyne will have it by the middle of next season.
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Saidmadrid: City tearing apart United now...when City smells blood, they don't let go...
Andrew: The De Bruyne / Haaland link-up could dominate club football for the next 4 or 5 seasons.
Gee Em: Oh dear, you have just had Haaland score two, and now your tallest defender gets replaced to have your two smallest CB on.... good luck Man Utd, you're going to need it.
HT: Man City 4-0 Man Utd
Jonathan Woodgate
Former England defender on BBC Radio 5 Live
Manchester United have been dreadful to put it lightly. Manchester City have been sublime. Every time they go forward, they look like they're going to score. Erling Haaland, Phil Foden, Kevin de Bruyne, Jack Grealish - they have been fantastic so far.
HT: Man City 4-0 Man Utd
We might need a therapy session for Manchester United fans. Send in your thoughts using #bbcfootball
Manchester City fans are probably tops off, dancing on the tables, but the space is open for them too!
Man City 4-0 Man Utd
Pure domination from Manchester City. They are cruising in this derby. Manchester United have been humbled.
Man City 4-0 Man Utd
Jonathan Woodgate
Former England defender on BBC Radio 5 Live
You hate to see what could happen after the full 90 minutes. They need to stop the rot. The game is done.
Man City 4-0 Man Utd
Christian Eriksen can't connect properly with a half-chance in the box as jeers ring out from the City fans.
A stream of away supporters are already starting to leave the stadium.
Man City 4-0 Man Utd
Jonathan Woodgate
Former England defender on BBC Radio 5 Live
This is absolutely embarrassing for Manchester United. It's brilliant play from City but United aren't helping themselves. Man City... What a team.
Phil Foden (43 mins)
Wow. This is beautiful from Manchester City.
Kevin de Bruyne plays in Erling Haaland on the left. He slides it across the box perfectly for Phil Foden and he does the rest.
It's two for Foden, it's four for Man City and it's surely game over at the Etihad with 43 minutes played.
Man City 3-0 Man Utd
Erling Haaland gets it in the middle but lays it off to Jack Grealish in a better position.
The England international doesn't want to shoot and instead tries to find Haaland again but he wasn't expecting it.
Man City 3-0 Man Utd
Cristiano Ronaldo has got his head in his hands on the bench.
Man City 3-0 Man Utd
Kyle Walker is taken off for City. Sergio Gomez replaces him.
Man City 3-0 Man Utd
Phil McNulty
BBC Sport chief football writer at Etihad Stadium
This is getting horribly messy for Manchester United. Erling Haaland is a phenomenon but what a ball from Kevin De Bruyne.
It's just unstoppable. Outstanding.
Man City 3-0 Man Utd
Kyle Walker still isn't happy with that knock he picked up. He's gone down again and the medical staff have come onto the pitch.
Raphael Varane is having to go off too. Victor Lindelof comes on in his place for United.