Published Sunday, 02 February 2014
Neil Lennon has suffered several incidents of abuse during his time at Celtic. (© PA)
Lurgan man Lennon was in the crowd at Tynecastle watching Aberdeen against St Johnstone.
His agent said the Hoops' boss had coins thrown at him and was spat at while he sat in the main stand.
It is understood the 42-year-old walked out of the stadium shortly after Adam Rooney scored the third goal in the 62nd minute of Aberdeen's 4-0 victory.
It's not believed he was injured and Aberdeen have blamed a "tiny minority" of supporters for the incident.
Celtic have hit out at the behaviour, a club spokesperson told the Press Association: "Clearly it is totally unacceptable for the Celtic manager to be treated in this way.
"Neil has complimented the way in which the situation was handled by stewarding staff at Tynecastle.
"We have an excellent relationship with Aberdeen Football Club and we are sure they will look into this matter."
Aberdeen, who reached their first cup final since 2000, appealed for supporters to report those responsible.
In a statement on their website, a spokesperson said: "The support we enjoyed at Tynecastle was absolutely fantastic and helped to create an incredible atmosphere that the manager and players acknowledged played a major part in what was wonderful day and occasion for Aberdeen Football Club.
"However, it would appear that a tiny minority within the main stand behaved in a manner that is completely unacceptable and has absolutely no place in football and we would urge anyone who has any information as to the identity of those responsible to get in touch with the club in order that appropriate action can be taken."
The Celtic boss was watching Aberdeen ahead of the two teams' William Hill Scottish Cup fifth-round meeting at Parkhead next Saturday.
Police Scotland said they had received no reports surrounding the incident.
The Scottish Professional Football League, which is responsible for security at the game, declined to comment at this stage.
© UTV News