Police are investigating a complaint about a serious sexual incident in Picton on Tuesday night or early yesterday morning.
Detective Constable Lindsay Tilbury said police had interviewed a male suspect, but no charges had been laid yet.
The investigation into the complaint was continuing, he said.
"This is very serious, and we are not taking it lightly. We want to complete the investigation before laying charges."
It is understood the incident may have happened near Picton Primary School, in Buller St. Police were seen at the school early yesterday morning.
"We'd be keen to hear from anyone," Tilbury said.
No further details on the incident were available yet.
Tilbury encouraged anyone with any information about the incident to contact Blenheim police on 03 578 5279 or phone Crimestoppers on 0800 555 111.
- The Marlborough Express
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