A Hato Hone St John spokesperson said the victim was taken to Wairoa Hospital by ambulance in a moderate condition.
The police statement said police have completed a scene examination and are making inquiries in the area, but they also are asking the public to share any information that could help.
“The offender has been described as a male, about 170cm (5′7″) tall, of a slim build, with a scarf wrapped around his face,” the statement said.
Wairoa police Detective Sergeant Sam Park said this kind of incident was very rare for Wairoa.
“It is a good reminder for people to check their home security and to check with their neighbours,” Park said.
Anyone who has information which could help identify this person, or who saw any suspicious behaviour around Brian Ave between 2am and 3am on April 26 is asked to contact police, either by calling 105 or online, referencing file number 230426/7511.
Information can also be provided anonymously via Crime Stoppers on 0800 555 111.
Police said they acknowledge that an incident like this can be very distressing and cause wider concern within our community, the statement said.
“This kind of behaviour will not be tolerated, and we would like to reassure the public that we are doing all we can to identify and locate this individual to hold them to account for their actions.”