A Scots College mother whose family has been linked on social media to one of the three boys accused of the alleged rape of a 14-year-old girl launched a foul-mouthed tirade during a phone call with the Daily Mail on Friday.

While the boys cannot be identified for legal reasons, three names have circulated online in the 24 hours since the serious charges were made public.

The Mail contacted the mother of one of the boys who was named online this morning. She did not deny that her son was one of the three teenagers charged.

'You know what? Tell your f***ing bosses to turn off the comments so that my son is not fucking harassed by people,' she shouted.

Her anger centred on a social media account that had named her family in connection with the case, which has plunged one of Sydney's most expensive private schools into scandal.

'I'm telling you now, tell your bosses, tell somebody to turn off the comments,' she continued.

'I'm getting f***ing threats.

'My address is out there. It's enough now.'

The woman, who has not been accused of any wrongdoing, said her family had been subjected to online abuse since their identities began circulating on social media.

When asked whether she was concerned about the allegations against her son, she erupted once more.

'Are you f****ing kidding me? F*** off,' she said before slamming down the phone.

The extraordinary exchange came as Scots College, where fees go past $50,000 for Year 12 students, faces one of the most serious crises in its 133-year history following the arrest of three students over the alleged sexual assault of a 14-year-old girl.

Police allege the girl was sexually assaulted in an alleyway in Sydney's eastern suburbs on July 22.

Three teenage boys were arrested on Thursday.

Two boys, aged 13 and 14, were each charged with aggravated sexual assault in company and two counts of aggravated sexual touching of another person.

A third boy, aged 14, was charged with one count of aggravated sexual assault in company and one count of aggravated sexual touching of another person.

All three were granted strict conditional bail and are due to appear before a children's court on August 25. 

Police also executed search warrants at homes connected to the investigation, seizing several electronic devices for forensic examination.

Officers also seized two replica firearms - including a Glock-style BB gun - three laser pointers and a number plate alleged to have been stolen from one of the homes.

Those items will also undergo forensic testing.

The arrests sent shockwaves through the exclusive Bellevue Hill school.

Less than 24 hours before the boys were charged, Scots College quietly announced it was postponing its annual 'Giving Day'.

'In light of the news affecting our College community this week, Giving Day has been postponed to Monday 17 August,' the school wrote on Facebook.

'Thank you for your understanding and support. We look forward to coming together on Monday.'

As police continue their investigation, the allegations have sparked intense scrutiny of the elite eastern suburbs school - while families connected to those accused have also found themselves under an unforgiving spotlight online.

The charges remain allegations and have not been tested in court.