Lennon, from Lurgan in Northern Ireland, backed the club's promise to take action against the fans group known as the Green Brigade who unfurled a banner during half-time of the 9-0 win over Aberdeen which read: "Your deeds would shame all the devils in Hell. Ireland, Iraq, Afghanistan. No bloodstained poppy on our Hoops."
Lennon: "I support the club's stance on it, the statement that was made on Monday.
"It's a sensitive issue with a lot of supporters, for and against.
"I go with the club's statement and I want to draw a line under that."
Scottish Premier League chief executive Neil Doncaster: "The club is currently carrying out an investigation into this matter.
"When it is concluded, it is the club's intention to ban those identified as responsible from Celtic Park.
"Celtic fans have rightly earned a magnificent reputation for their positive behaviour and backing of the club. It is extremely disappointing that the actions of a small minority have embarrassed Celtic and tarnished the club in this way.
"These actions have no place at Celtic Park and, clearly, we apologise for any offence caused."
We applaud the SPL ... and Celtic Football Club ... for making a stand. There is no place in football for this type of demonstration.
* Our young goalkeeper Fraser Forster is on loan at the club until the end of the season, although he can be recalled in January if Steve Harper's recovery from injury doesn't go to plan.