A Christchurch college has disciplined several students for online posts about a female rower while they were at the Maadi Cup Rowing Regatta.
St Bede's College rector Justin Boyle said in a statement the boys' social media activity breached the school's code of conduct.
The school would not detail what they did, nor the punishment, but it was understood four boys were sent home early last week over the comments.
Mr Boyle said the school took "immediate steps to have the posts removed when told of the situation".
Processes changed since 2015 incident
In 2015, two St Bede's College pupils were removed from the secondary school rowing championships after riding a luggage conveyor at Auckland Airport, sparking a security alert.
Rowing coaches Alex Meates and David Lindstrom quit and board member Stephen Spencer, who had a son on the rowing team, stood down.
Mr Boyle said in the last two years, the college's investigation and disciplinary processes were reviewed and updated.
"The school has a strong sense of responsibility to ensuring the wellbeing and welfare of all boys at all times including when they get it wrong.
"The board of trustees and the rector take ultimate responsibility for the boys and their behaviours when attending any event representing the school."
The competition at Lake Karapiro, in Cambridge, finished yesterday. St Andrew's College, of Christchurch, won.