A man from Trafford has been arrested after GMP received a report of historic sexual abuse.
The 63-year-old man was arrested on suspicion of indecent assault and possession of indecent images on Friday 9 November 2012 and has been bailed until 12 March 2013, pending further enquiries.
The alleged offences relate to an incident in the early 1980s when the victim was 17 years old and a pupil at St Ambrose RC College in Altrincham at the time.
Police have subsequently received further reports of incidents of historical sexual abuse at the school dating allegedly involving staff.
"First and foremost I want to stress that we are looking at historical incidents.
"The safeguarding of pupils is without doubt a top priority for the school and I don't want current pupils or their families to be unduly concerned.
"That said, this is an extremely serious and upsetting incident for the victims in this case.
"As part of this investigation we have received further reports of potential historical incidents.
– Detective Inspector Jed Pidd, from Trafford's Public Protection Investigation Unit
"Unfortunately some of these have come to us third hand and we really need to speak to anyone who was a pupil at the school who may have information to assist our enquiry.
"I want to reassure anyone who might want to report any incidents or offences that we treat all allegations of sexual abuse extremely seriously and we would encourage you to contact your local officers in Trafford."