England reviewpublished at 13.5 overs
Has Ellyse Perry nicked Sarah Glenn behind?
Amy Jones was keen and England opt to send it upstairs.
England hold nerve to win by three runs - Australia now lead points-based series 6-2
Australia slip to 75-4 & 160-7 after being 59-0
Perry's late onslaught - 51 off 27 balls - not enough for Australia
Ecclestone reaches 100 T20 wickets - the quickest to the mark
England set Australia 187 to win, despite losing five wickets for 19 runs in 23 balls
Sutherland takes two wickets in two balls and superb catch
Wyatt top-scores with 76 off 46 balls
Next match: Third T20 at Lord's, Saturday (18:35 BST)
Highlights on BBC iPlayer and BBC Sport app from 23:00 BST
Callum Matthews and Mike Peter
Has Ellyse Perry nicked Sarah Glenn behind?
Amy Jones was keen and England opt to send it upstairs.
Need 86 off 42 balls
Can you ever discount Australia while Ellyse Perry is at the crease? And that is before you think about Annabel Sutherland, who made a century in the Test earlier in the series.
Perry slog-sweeps Charlie Dean for four to end the over.
Australia need 12.28 runs an over. A tough ask but not impossible on a fast-scoring ground.
Alex Hartley
Former England bowler on BBC Test Match Special
Grace Harris can barely believe that. But actually she's just missed a straight one, playing across a straight delivery that clatters the stumps. Charlie Dean found herself out of the team in the first game, she's bowling so well today.
Harris b Dean 9 (Aus 96-5)
Bowled her!
This is not a great shot from Grace Harris to be honest.
She looks to turn into the leg side but misses a straight one and Dean smashes into her middle stump.
These sixes from Alyssa Healy were huuuugggggeeee!
Need 92 from 48 balls
Australia are still in this.
Sarah Glenn's line strays and Grace Harris is able to sweep fine for four.
How will England cope if this gets tight? They have often struggled to win the crunch moments in this series and historically against Australia.
Alex Hartley
Former England bowler on BBC Test Match Special
This game is by no means over with these two at the crease. They've got Annabel Sutherland to come as well - so Australia have probably got one more lifeline, but this is a key partnership.
Target 187
Ellyse Perry is so good.
She chips Dani Gibson into the cover boundary, before planting her downtown for four more.
That leaves 100 off 54 balls. Required run-rate of 11.11.
Alex Hartley
Former England bowler on BBC Test Match Special
Ecclestone calling on her fielders to get round, calling "Come on, come on!"
That's purely because you don't want to be behind the clock, you don't want to bring another fielder into the fielding circle.
Australia's 'collapse' started with this...
England lost five wickets for 19 runs in 23 balls earlier.
Australia have now lost four wickets for 16 runs.
It's contagious.
Target 187
Sophie Ecclestone has figures of 1-10 from two overs now.
She is encouraging her team-mates to get round now so England stay within the permitted time.
Australia need 110 runs from 10 overs.
Alex Hartley
Former England bowler on BBC Test Match Special
A soft dismissal, Ash Gardner just flicks the ball back to Ecclestone. The simplest of simple catches.
Gardner c&b Ecclestone 9 (Aus 75-4)
England are surely favourites now!
Sophie Ecclestone had dropped a touch short and Ash Gardner smacked it to the square-leg boundary.
However, there's an immediate comeback from Ecclestone as Gardner just chips a simple catch back to the left-arm spinner.
The left-arm spinner has now taken 100 T20 international wickets. She's the quickest in the world to the landmark too!
Alex Hartley
Former England bowler on BBC Test Match Special
Huge moment for Gibbo! Second T20 game, first international wicket - Beth Mooney, that'll be a moment she'll never forget.
That said, I've forgotten who my first international wicket is.
Mooney c Wyatt b Gibson 22 (Aus 71-3)
Dani Gibson has a first international wicket!
It's a big one too.
Round the wicket to Beth Mooney, she cramps the left-hander for room slightly, and it's a pretty simple catch for Danni Wyatt on the mid-wicket boundary.
Are England favourites now?
Alex Hartley
Former England bowler on BBC Test Match Special
That required run-rate for Australia has gone up above ten runs an over. As a team you try and get the run-rate over tens as soon as possible.
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Superb effort from Wyatt and some magnificent ball striking late on from England. A real chance here. But watching the collapse made me question how Tammy Beaumont is overlooked for the T20 squad. Surely there is a place for world-class talent?
Nick
Alex Blackwell
Former Australia batter on BBC Test Match Special
Another thing for Australia is they've got such a deep line-up that they can afford to be aggressive chasing this total.
Target 187
Perfect start for Sophie Ecclestone. Just four runs conceded to go with that run out.
The required run-rate is up to 10.08.