IN PICTURES | Arsenal lose tough second-leg game against Ostersunds, scrape through to Europa League last 16

Two quickfire first-half goals gave Swedish minnows Ostersunds hope, but Sead Kolasinac's goal just after the interval saw Arsenal hang on for a 4-2 win on aggregate.

Arsenal's Jack Wilshere, right, battles for the ball with Ostersunds' Dennis Widgren during the Europa League Round of 32, second leg match between Arsenal and Ostersunds FK at the Emirates Stadium in London. (AP) 

Ostersunds' Jamie Hopcutt, competes for the ball with Arsenal's Mohamed Elneny. (AP)

Ostersunds' Tesfaldet Tekie, second left, challenges for the ball with Arsenal's Danny Welbeck. (AP)

Ostersunds' Hosam Aiesh, celebrates after the own goal by Arsenal's Calum Chambers. (AP)

Arsenal's Alex Iwobi, center right, speaks to the referee during the Europa League Round of 32, second leg match between Arsenal and Ostersunds FK at the Emirates Stadium in London. (AP)

Arsenal's Alex Iwobi, left, and Ostersunds' Hosam Aiesh battle for the ball. (AP)

Arsenal's Ainsley Maitland-Niles, right, defends the ball from Ostersunds' Hosam Aiesh, left, and Ostersunds' Curtis Edwards. (AP)

Arsenal's Danny Welbeck, top right, competes for a high ball with Ostersunds' Sotirios Papagiannopoulos. (AP)

Arsenal's Hector Bellerin, below, dives for the ball against Ostersunds' Ken Sema. (AP)

Arsenal's Sead Kolasinac, right, celebrates after scoring his side's lone goal during the Europa League Round of 32, second leg match between Arsenal and Ostersunds FK at the Emirates Stadium in London. Despite losing 2-1, Arsenal hung on for a 4-2 win on aggregate to head into the last 16 of the tournament. (AP)