Here's Mehedi, over the wicket. Bairstow charges, gets into a real tangle but there's enough pad on it to knock it away to safety. He gets off the mark shortly afterwards though, as Mehedi drops short and Bairstow works it away into the leg side. Stokes then pulls gloriously into the deep for a very welcome boundary.

Dominique Cutts: This is a lot of drama for a Sunday morning

Peter: Looks like England are better off with bowlers who can bat, rather than batters who can bowl.

Magnificent fielding from Shaiful on the boundary cuts off what looked like a sure boundary from Stokes. Stokes stood on the back foot, drove Hom with a good bit of thwack and a tumbling dive saved two runs. Bangladesh are up for this - everything has got that little bit sharper.

Andrew Samson
BBC Test Match Special statistician

Image source, AFP

Mehedi (19 years and five days) is the sixth youngest bowler to take 10 wickets in a Test and the second youngest Bangladeshi after Enamul Haque Jr (18 years and 43 days).

Dan Norcross
BBC Test Match Special

Image source, Getty Images

The crowd is going berserk and Bangladesh are on the brink of a famous victory. They could take all 10 wickets in this session and win the match.

Five wickets for 27 runs since tea in 10 overs and five balls. Wow!

Bairstow joins Stokes out in the middle. There's a ton of chatter around the bat. The crowd have ramped up the noise. It's gloomy. Horrible. Bairstow defends his first ball, and that's the over.

Dan Norcross
BBC Test Match Special

A lot will rest on the shoulders of Stokes. He's an aggressive batsman and I can't see him blocking too many for too long. He got a duck in the first innings so at least he's off the dreaded pair.

Jon Dunn: Ah, the England cricket batting collapse. 4-24 textbook stuff.

Harry McCrea: No pressure skip but you may have to carry your bat here...

Matt Richardson: Simply not good enough Gary Ballance. Thanks for trying but you are not good enough at this level.

Dan Norcross
BBC Test Match Special

It's been absolute mayhem since tea. Four wickets in 44 minutes.

Hom rounds off the over with an absolute pearler that whizzes past Cook's outside edge. Cook wanders off to short leg for a word with himself. What a Test this has turned out to be.

Missing! Cook survives. It didn't straighten enough, and he was quite a way down the wicket. The England captain flicks his head from side to side and settles back over his bat.

Image source, Reuters

The crowd are up for every single delivery, letting out a yell as Cook turns one into his pads. Oh, that looks close - Cook's been struck on the front pad. Mushfiqur makes the T signal - here we go again...

Athar Ali Khan
Former Bangladesh all-rounder on BBC Test Match Special

What a turnaround! What a Test match this is turning out to be. It could even end today.

Jonathan Agnew
BBC Test Match Special

The crowd are really into this now. There's real tension.

We're back into the feeling that any ball could bring a wicket.

Moeen's been given lbw to Mehedi, he and Cook have a natter. Cook doesn't look too confident but what can you do? We're going upstairs.

Jonathan Agnew
BBC Test Match Special

Image source, Getty Images

What a disappointing way to get out. That was a poor shot and a pretty basic mistake.

This game is very much alive.  

Athar Ali Khan
Former Bangladesh all-rounder on BBC Test Match Special

The opening partnership was brilliant, it was so positive, and Duckett batted beautifully, but anything can happen on this surface.