Stephen Hay: "Celtic shouldn't even be on the same field as Stjarnan. Several levels above in talent level but you never know ... #bbcscotfootball"

The second leg in Montenegro resumes for the second half. Celtic or Stjarnan will face the hosts or Azerbaijan's Qarabag in the next round but there's no scoring so far in that tie.

More frustration for Celtic as Charlie Mulgrew's corner bobs around the box with Nadir Ciftci unable to get a shot away and then Gary Mackay-Steven fails to control the ball properly from a decent shooting position.

Stjarnan goalkeeper Gunnar Nielsen punches Stuart Armstrong's inswinging corner clear. Pressure beginning to mount on the hosts.

Chris McLaughlin
BBC Sport in Iceland

"Not too many Celtic players arguing as the flag is raised. Boyata goal chalked off and the visitors get their heads down and build again. Stjarnan frustrating the visitors with some pretty solid defending."

Magggggie: "#bbcscotfootball I can't believe Ronnie persists with Ciftci... He's so one dimensional in comparison to Griffiths"

Celtic have the ball in the net but it does not count. The visitors had a free-kick and, after Stefan Johansen's shot from Charlie Mulgrew's disguised pass was spilled by goalkeeper Gunnar Nielsen, Dedryck Boyata fired in from an offside position.

There were some appeals from the home crowd moments ago after the ball bounced around at the edge of the Celtic penalty area with the Stjarnan supporters insisting visiting defender Dedryck Boyata had handled but Belgian referee Jonathan Lardot was unmoved.

Still no indication who Celtic or Stjarnan will face in the next round with Montenegro's Rudar Pljevlja and Azerbaijan's Qarabag goalless at half-time on the night and on aggregate.

Chris McLaughlin
BBC Sport in Iceland

"The Stjarnan boss Runar Pall Sigmundsson said yesterday that the small stadium could give his side a mental advantage. Celtic do look a little spooked early on."

Celtic striker Nadir Ciftci latches on to a lobbed pass by Stuart Armstrong into the Stjarnan penalty area before lashing the ball high and wide.

Chris McLaughlin
BBC Sport in Iceland

"The Silverspoons go utterly crazing here as Stjarnan take the lead after seven minutes. Just exactly what Celtic wanted to avoid. A few nervous looks on the visiting bench."

Not the start Celtic would have wanted. Stjarnan break down the left and Jeppe Hansen plays in Olafur Karl Finsen, who cuts inside Nir Bitton before finishing confidently past Craig Gordon.

Scott McKenzie: "#bbcscotfootball. C'Mon Bhoys! Put this away early!"

Celtic comfortable in possession so far and win a couple of early corners.

Nick, Burnley: "Playing 1 upfront away in Europe with a 2 goal cushion, sounds like common sense to me regardless of the opposition. Cmon the hoops!"

The second leg is underway.

Back in Iceland, the players are on the pitch and ready to go with Celtic set to kick off.

Still no scoring after half-an-hour of the second leg of the tie which will decide who Celtic or Stjarnan will face in the next round.