South Africa win by six wickets
First Proteas side to reach a World Cup final
They will face defending champions Australia on Sunday
SA post 164-4 after fifties by Brits and Wolvaardt
Brits takes four catches, including one-handed stunner to dismiss Capsey
Ragged England lose 5-26 in 22 balls to fall to defeat
Another half-chance goes begging as Sophie Ecclestone looses the ball in the sky and Marizanne Kapp is let off the hook, running an easy two.
If Ecclestone would have clocked that, that could have been a catch on the dive.
Alex Hartley
Former England bowler on BBC Test Match Special
That is a such a good shot from Brits - probably the best we have seen today.
Brits 57, Kapp 2
Tazmin Brits is on a roll now, picking NSB's slower ball and chipping one over the covers for a two-bounce four.
Alex Hartley
Former England bowler on BBC Test Match Special
Anything over 145 I will be a bit twitchy, purely because of scoreboard pressure.
England should be able to chase anything they are set. The pitch is good. Even if South Africa get 160+ it does not mean it is game over.
A dot, a precious dot from Nat Sciver-Brunt who returns to the attack.
Next ball and it's a dot again.
Ffion Wynne
BBC Sport in Cape Town
A mightily impressive half-century from Tamzin Brits after a really tough start to the competition.
England have got to stay calm - the game is not lost but there are some ominous signs.
Not many players have cleared the rope in this tournament because of how big the boundaries are, but Brits has just made it look rather easy.
England are not used to being under the pump like this.
Is that the over we'll come back to at the end of this game? Eighteen runs from it.
I'd rather be in South Africa's position with five overs to go in the first innings.
SA 115-1
What an over. Brits smashes a four through the off side to move on to 52 off 43.
Daniel Norcross
BBC Test Match Special
This is dangerous now for England.
Brits goes again and it's six again!
This one is clubbed over the leg-side boundary. She's on to 48 from 42.
Alex Hartley
Former England bowler on BBC Test Match Special
That is a great shot from Tazmin Brits and exactly what South Africa need her to do in this situation.
Daniel Norcross
BBC Test Match Special
That is a mighty, towering six.
Oh no Hartley, what have you done?
Tazmin Brits brings up South Africa's hundred, stepping down the ground and launching Sarah Glenn for a huge six.
Alex Hartley
Former England bowler on BBC Test Match Special
Brits' strike-rate could be what hurts South Africa here, especially when you have Chloe Tryon waiting to come in.
Laura Wolvaardt was looking in such good form. She was set and looked primed to push on.
Eight runs off Ecclestone's latest over. But a huge breakthrough as well.
Ecclestone celebrated quite aggressively there. England look very relieved with that breakthrough.
Image source, BBC SportAlex Hartley
Former England bowler on BBC Test Match Special
A big send-off from Sophie Ecclestone. That is purely frustration.
Wolvaardt c Dean b Ecclestone 53 (SA 96-1)
Finally England have their wicket.
Sophie Ecclestone gets the crucial scalp of Laura Wolvaardt who falls tamely, chipping the ball straight to Charlie Dean in the inner-ring.
Relief.
SA 94-0
Sophie Ecclestone returns to the attack but the number one bowler in this format isn't shown any respect from Laura Wolvaardt who reaches her fifty off 42 balls with a four over the covers.
South Africa are in a very