England reach World Cup final - will play Australia on Sunday in Christchurch (02:00 BST)
Ecclestone (6-36) takes first international five-wicket haul
Shrubsole takes two wickets with new ball
England post 293-8 after being asked to bat first
Wyatt - dropped five times - makes 129 off 125 balls
Opener shares stand of 116 with Dunkley (60) for fifth wicket
#bbccricket
Roberto: Is this the same misfiring England team from the first three matches? Great bowling - Ecclestone and Dean unplayable, sharp fielding, catches being taken, batters in form. The final with Australia will be a ripper!
Alex Hartley
England spinner on BBC Test Match Special
It was just a matter of time. Du Preez had got away with sweeping Ecclestone a few times but she's been outfoxed.
Proving exactly why she's the world's best.
Du Preez b Ecclestone 30 (SA 110-7)
The end is nigh for South Africa - Sophie Ecclestone has her third!
Mignon du Preez went across her stumps and tried to paddle sweep but the England spinner fired it in straight and found her target.
Alex Hartley
England spinner on BBC Test Match Special
Just hit out or get out. There's no point just batting the 50 overs.
Stephan Shemilt
BBC Sport's chief cricket writer
The game isn't over, but the contest will be soon.
Du Preez 25, Chetty 0
Mignon du Preez gets the ball through backward point for two before a paddle sweep adds a single. South Africa are pretty much going through the motions now. The game is up, it is pretty much just a matter of deciding whether to drag things out or go down in a blaze of glory.
Alex Hartley
England spinner on BBC Test Match Special
We thought this game would be a nail-biter, especially compared to Australia's thumping of West Indies yesterday.
Well, it looks like England are about to win in the same way.
Target 294
As if South Africa weren't already up against it enough, Ecclestone greets Chetty with a delivery that leaps up from a length. Much more of that and this could be over very, very quickly.
Henry Moeran
BBC Test Match Special
South Africa are crumbling.
Tryon c Sciver b Ecclestone 3 (SA 101-6)
Ecclestone and England are laughing again! The very next ball and Chloe Tryon chips the ball towards mid-wicket where Nat Sciver moves to her left and takes the catch.
England are getting ever closer to another World Cup final.
SA 101-5
Yes, yes there was bat involved. In fact, it was the only thing involved - right into the middle of the bat with no pad involved. Ecclestone can only laugh.
Alex Hartley
England spinner on BBC Test Match Special
Any bat involved? Yes... she's nailed it!
SA 101-5
Heather Knight is persuaded to go for the review after Ecclestone hits Tryon on the pad. Was there bat involved though?
South Africa really do look down and out...
Here is Kate Cross doing that important work. The England seamer bowled Sune Luus with a jaffa earlier in the innings...
Henry Moeran
BBC Test Match Special
She does have quite important work to do, Alex...
Alex Hartley
England spinner on BBC Test Match Special
Kate Cross is below us and I'm trying to get her to wave to the cameras but she won't. She's now turning away from us.
Target 294
Charlie Dean races through another over, just two from it, as England's spinners really start to put the squeeze on South Africa.
Alex Hartley
England spinner on BBC Test Match Special
England have had a whirlwind of a tournament - losing their first three games and now they're closing in on the final.
Sophie Ecclestone is now the leading wicket-taker in the tournament. She is a world-class performer at the top of her game. Just the fact that she has another eight overs to bowl means South Africa's chances go from slim to practically zero.