Rape allegations, drugs busts, and thrown punches were at the centre of police callouts over the weekend.
Masterton Police Sergeant Tony Matheson said an alleged sexual assault near Memorial Square in Carterton on Saturday night had been referred to the Criminal Investigation Branch and that no arrests had been made.
"Just after 9pm police had a call from a member of the public who came across a distressed woman," Mr Matheson said.
"She provided some information to those people which was passed onto the police.
"As a result the CIB are conducting an investigation, but at this stage we don't believe there is any concern for the general public."