Gallery: Dramatic scenes outside the stadium in Zenica ahead of Ireland's meeting with Bosnia
A boisterous Bosnia & Herzegovina crowd is making its way to the Bilino Polje Stadium in Zenica this evening.
An estimated 880 Irish fans will join over 11,000 home fans in the arena when the Republic of Ireland attempt to get their Euro 2016 play-off off to the best possible start ahead of the return leg in the Aviva Stadium on Monday.
Visibility at the stadium for spectators and TV viewers may be affected as fans are setting off a lot of flares outside the venue.
This is how things look from inside the ground:
Stadium in Zenica already three quarters full as Irish team come out to have a look - it's away fans that are absent pic.twitter.com/JMqI2yMzaJ— Daniel McDonnell (@McDonnellDan) November 13, 2015
There is a heavy police presence surrounding the venue with qualification for next summer's tournament at stake.
Ireland legend Ray Houghton delivered his prediction on the game for Sky Sports with home fans making a lot of noise in the background.
"They are going to try and intimidate the Irish player but they are used to it," Houghton said.
Here is a selection of images from outside the ground: