Pakistan are just about hanging on against Australia at the Gabba. They're 144-5 at lunch - still 196 runs behind the hosts. Babar Azam is 67 not out. The full scorecard for that one is here.

Image source, AFP

Andrew Samson
BBC Test Match Special statistician

BJ Watling's 189 is now the highest score by a New Zealander wicketkeeper, beating Brendon McCullum's 185 against Bangladesh in 2010.

BJ Watling uses his feet superbly to get to the pitch of the ball and shovel it through extra cover for a couple more off Joe Root.

A square drive brings up two more. Just 11 more to his double ton now.

Andrew Samson
BBC Test Match Special statistician

The 250-run partnership came up in 496 balls. The last 50 came up in 40 balls.

Obviously Kane Williamson wants to win this Test but maybe he should give his side the chance at breaking Sri Lanka's record 952-6 against India in 1997.

Mark Ramprakash
Ex-England batsman on BBC Test Match Special

I can't help but feel a little bit for Sam Curran. I think he's done a good job in this game until now. As a young guy on a very difficult pitch he's done pretty well.

Jonathan Agnew
BBC cricket correspondent

It's a tired ball. Watling said "thank you".

Sam Curran, back of a length, tennis ball bounce and BJ Watling swivels a fierce pull shot to the fence.

That's the 250 partnership.

It's a weird thing that England have about letting lower middle order batsmen named Mitchell score big centuries against them in Australasia.

Andrew Samson
BBC Test Match Special statistician

This is Mitchell Santner's highest first-class score.

Image source, AFP

Joe Root finishes with a full toss and Mitchell Santner wallops it out to the man at deep mid-wicket for one.

BJ Watling makes a rare mistakes as he chips it up off a leading edge.

Stuart Broad retreats at square leg but misjudges the flight and the ball loops over him.

A furious Joe Root kicks the turf.

Andrew Samson
BBC Test Match Special statistician

This is now New Zealand's highest Test score against England, beating the 551-9 at Lord's in 1973.

Sam Curran bangs it down, the ball sits up and Mitchell Santner flamingo flays a tennis shot out towards wide long-on.

Stuart Broad dives but the ball flies past him and bounces just inside the rope for four.

That's the lead up over 200 now.

Mark Ramprakash
Ex-England batsman on BBC Test Match Special

Well, this is really tough for England. Physically it's very demanding but also mentally because they know they can't win the game. I've got to be very complimentary of New Zealand, BJ Watling has stayed in his bubble but Mitchell Santner has really impressed me.

Image source, Getty Images

Andrew Samson
BBC Test Match Special statistician

BJ Watling has now reached the highest score for New Zealand at number six, beating Jeremy Coney.

Image source, Reuters

Bold gambit if England blame this on the presence of Andrew Samson.

Will Kane Williamson let BJ Watling bring up his double ton? New Zealand could give him until tea in 40 minutes' time and then have four sessions to bowl England out.

Andrew Samson
BBC Test Match Special statistician

This is the highest seventh-wicket partnership in New Zealand history beating Chris Cairns and Jacob Oram's 225 against South Africa in Auckland in 2004.

It's all my fault, I was there for that one too.

Joe Root slings down a leg-side wide and only Sam Curran's fine dive can prevent another boundary.

A tapped single takes New Zealand to 550.

Kane Williamson is starting to pace around the balcony a bit more now - declaration coming?