Luton keeper Matt Ingram punches the ball away, with Harry Toffolo throwing himself at it as he attempts to head in.

Ingram was meant to be on his honeymoon, but is on an emergency loan from Hull.

I genuinely can't call this.

Luton have been the better side overall, but Huddersfield have improved since the break and have that boisterous crowd behind them.

Matthew Glennon
Former Huddersfield keeper on BBC Radio Leeds

The referee didn't even acknowledge the penalty claims. It's a stonewaller!

Town players have got to keep their heads now.

Image source, Reute

It's all kicking off now!

Luton keeper Matt Ingram is twice called into action - but Ingram then lets the ball go from his grasp and appears to bring down Huddersfield wing-back Harry Toffolo.

It looked like a penalty to me - referee Peter Bankes gives nothing, while Luton claim Sonny Bradley was fouled beforehand.

Cameron Jerome plays in Harry Cornick and the Luton striker's shot is beaten away by Huddersfield keeper Lee Nicholls.

The ball falls for James Bree, who can't get a clean shot away.

Image source, Rex Features

This may be goalless on the night but you can't argue that it's an entertaining tie.

Jeopardy, tension - it's had everything but a goal.

Robert Snodgrass crosses for Luton, Cameron Jerome gets in front of his marker but gets too much on it and it goes wide.

Luton's turn to go forward.

Harry Cornick works some space and his ball into the box is turned behind for a corner.

Change in attack for Luton - Huddersfield-born Cameron Jerome replaces Danny Hylton.

Elijah Adebayo remains on the bench, which tells me he's not fully fit.

A bit of housekeeping, Kal Naismith was booked a few minutes ago for the Hatters for a lunging challenge on Sorba Thomas.

Image source, Reuters

Tom Lees heads home for Huddersfield from Sorba Thomas' free-kick but referee Peter Bankes blows up for a foul on Sonny Bradley.

Jonathan Smith
Former Luton midfielder on BBC Three Counties Radio

There haven't really been any chances so far in this first half - it's very tight.

I was expecting this in the first half, to be honest, but Luton were great.

I'm just looking for Luton to create that chance now.

Matthew Glennon
Former Huddersfield keeper on BBC Radio Leeds

Danel Sinani has not had a good night at all.

Hopefully Sorba Thomas can give them that injection of quality they need.

The hosts are first to use their bench in this second half.

First-leg scorer Danel Sinani makes way for Sorba Thomas, who was surprisingly left out tonight.

Thomas is a highly creative player.

Luton midfielder Jordan Clark goes into the book for a mistimed challenge, as Huddersfield look to break.

He complains but it was a late tackle.

It's 30 years since Luton last played top-flight football.

They're looking to become the first team to play in non-league and the Premier League since the division's inception in 1992.

They've been the better team so far but have nothing to show for it.

Image source, Rex

The visitors have found their stride again.

Allan Campbell gets to the byeline and clips in a cross - Amari'i Bell gets his head to it but Huddersfield full-back Pipa does enough to put him off and the ball goes wide.

Image source, Reuters

Here come Luton.

Robert Snodgrass, who had a lively first half, is allowed to take the ball down and find Reece Burke - whose final ball is lacking.

Hatters top scorer Elijah Adebayo will be licking his lips - he's on the bench but must feel he'll get a chance or two if he comes on.

There's no doubt in my mind that Huddersfield boss Carlos Corberan has given his side a half-time rocket.

They've looked a different side in this first five minutes of the second half, playing with purpose and intent.

Danel Sinani's effort from 20 yards is held by Luton keeper Matt Ingram.

Image source, Rex Features

The hosts are straight on the front foot and win a corner.

Huddersfield get first contact but James Bree does well at the back post and Luton survive.

This is already more like it from the Terriers.

Back under way on a mild West Yorkshire evening.

As it stands we'll be going to extra time, but both sets of players have 45 minutes to make sure it doesn't go that far.

No half-time changes made.

Whoever goes through tonight will experience VAR in the play-off final at Wembley, in what will be an Football League first.

The EFL confirmed last week that the system - usually reserved for the Premier League - would be used for the Championship play-off final on 29 May.

Today they announced it will also be used for both the League One and League Two finals.

Let me know how you feel about that, using #bbcefl on Twitter.