A man in his 60s has been arrested over allegations of historical offences at Kesgrave Hall boarding school.
The claims against the 68-year-old range from the 1970s to the 1990s.
A spokesman for Suffolk police said a man from north Norfolk was arrested on suspicion of indecent assault on Wednesday and taken to Aylsham Police Investigation Centre.
He was released on police bail until September 1.
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