Dundee FC are to hold a full investigation into the circumstances which surrounded an Irish flag being removed from advertising boards during Sunday's game with Celtic. 

The Glasgow club's supporter liaison officer, John Paul Taylor, posted a statement on social media on Wednesday following a meeting with the Dens Park club. 

Mr Taylor said: "Update on issue from Sunday regarding the flag removal. 

"The club and Dundee FC have met with the two fans involved, Dundee FC are currently carrying out a full investigation."

Video circulating around Twitter showed the Irish flag being removed during Celtic's 1-0 win over Dundee on Sunday.

The flag was being displayed in the away end during the Scottish Premiership clash until it was taken away.

Footage shows a Celtic fan then pursuing those who removed it and confronting them, before finally getting his flag back.

READ MORE: Why was the Irish flag pulled down at Dens Park during Dundee v Celtic?

And the fan who had his flag removed said afterwards he was told to leave the ground after he went to retrieve it from stewards. 

While supporters groups voiced their disgust at the actions, Dundee said the reason was not sinister - stating simply that the flag breached rules as it was covering advertising.

In a statement earlier this week, John Nelms, managing director at Dundee, said: "The flag itself was taken down because it was covering up a board that was paid for by patrons that support the club.

"That's the only reason it was taken down."

Read more of today's top Glasgow stories.