Mr Flanagan and Ms Corcoran Kennedy had attended a meeting of the Oireachtas environment committee in late June, which had discussed the problem caused to local farmers by excessive flooding in the river Shannon area.
At the end of the meeting, Ms Corcoran-Kennedy approached Mr Flanagan and challenged him over references he had made to her on his Twitter social media account.
Later that evening, Mr Flanagan tweeted: “I am reporting Deputy Corcoran Kennedy to the Oireachtas usher staff for physically denying me from leaving the meeting on Shannon floods.”
When another account user asked did she really block his way, he replied: “Meeting was over. She refused on three occasions to let me pass unless I listened to her rant. Not acceptable.