Soon the Lord's crowd booed Australia with chants of "same old Aussies, always cheating".
When the players walked through the Long Room, Australian opener Usman Khawaja was seen stopping and confronting a MCC member. He was pulled back by security guards. Warner could also been seen making a comment to some of the members. The booing continued as the Australian players climbed the stairs.
"The Long Room is unique in world cricket and the great privilege of players passing through the Pavilion is very special. After this morning’s play, emotions were running high, and words were unfortunately exchanged with some of the Australian team, by a small number of members," the MCC said in a statement.
"We have unreservedly apologised to the Australian Team and will deal with any Member who has not maintained the standard we expect through our disciplinary processes. It was not necessary to eject anyone from the ground and I am pleased to say that there was no repeat of this as the players resumed the field for this afternoon’s session."
Australian team management had also requested the MCC to investigate the incidents involving spectators in the members' area.
"Australian management has requested the Marylebone Cricket Club investigate several incidents involving spectators in the members area during lunch on day five of the Lord’s Test,” Cricket Australia said in a statement.
"It is alleged players and staff from the Australian team were verbally abused, with some being physically contacted, as they made their way to lunch through the members area."