Jordan White restores the visitors' lead with a close-range header from Aaron Doran's corner.

A darting run through the middle of the park from Euan Henderson is completely unopposed by the Airdrie midfield and defence, allowing the young player to march to the by-line before cutting the ball back to an unmarked Steven Naismith to tap it home.

Calum Waters with the cross and Jon Obika applies the finish to wrong-foot the keeper.

A cross from Benjamin Garuccio floats to the Airdrie back post, where Callum Fordyce heads the ball to the edge of the box. However, Sean Clare latches on to the loose ball and fires home with a wonderful volley.

Hearts striker Steven Naismith fires home the rebound from a Lewis Moore shot but the referee rules it out for offside.

The second half has started in much the same way as the first 45 minutes unfolded. Aberdeen are the team going forward, but Dumbarton goalkeeper Conor Brennan isn't having to do much except take a succession of goal kicks after every missed chance.

Sam Cosgrove has been well marshalled by the Dumbarton back line, and the rest of the Dons side are struggling to show their predatory instincts.

Image source, SNS

Here we go again, let battle commence in the second half.

Four top-flight sides have given themselves plenty of work to do in the second half.

Ross County and Livingston are in the biggest bother - they trail 1-0 against second-tier Ayr United and League One Raith Rovers respectively.

Aberdeen haven't found a way past League One Dumbarton at Pittodrie, while little East of Scotland side Broxburn Athletic have made it to the interval scoreless at St Mirren.

Image source, SNS

Kenny Crawford
BBC Sport Scotland

Three Chris Burke crosses, three headed goals for Kilmarnock, who are on easy street at half-time in their tie against Queen’s Park.

All the goals have been scored by central defenders; Alex Bruce with the first and Stuart Findlay netting the other two.

It’s the kind of start to 2020 that Alex Dyer and his Killie side would have been dreaming of.

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Bruce Anderson scored on his last Pittodrie appearance against Livingston in December, and he's determined to take his chance again on a rare start. He jinks into the box but his shot is blocked for a corner, from which Anderson Considine heads straight into the goalkeeper's hands right on the stroke of half-time.

It's been a dominant 45 minutes from Aberdeen, but Dumbarton are managing to repel the Premiership side so far.

It's a first Accies goal for defensive midfielder Scott Martin as his shot takes a deflection and whizzes in.

Ouch!published at 15:46 Greenwich Mean Time 18 January 2020

15:46 GMT 18 January 2020

Hearts 1-0 Airdrieonians

Hearts are one goal up but now two injuries down as Michael Smith hobbles off the pitch, replaced by Oli Bozanic. If we include the injury to Uche Ikpeazu prior to kick off then that makes three injuries for the Tynecastle club today.

It's a hat-trick of assists for Chris Burke and a second goal for Stuart Findlay as the defender rises to head home the winger's corner.

It looks like game over at K Park as Martin Grehan tucks a shot away in style.

Plucky East of Scotland team Broxburn are holding out at the Premiership side after withstanding plenty of early pressure.

Jonathan Obika should have fired Saints ahead, but his glaring miss has given the visitors hope. Can they hang on until half-time?

Ross County have had the better chances but it's the hosts who take the lead. An outswinging corner is met by Steven Bell who heads the ball into the bottom corner.

Stranraer were glad to avoid a pounding at Ibrox last night and even happier to rake in lots of lovely cash from the televised tie.