Police checkpoints in Marokopa have been scaled back as an investigation into the disappearance of Tom Phillips and his three children continues.

"This was planned, as part of the current phase of this ongoing investigation," says Acting Detective Inspector Andrew Saunders.

"Residents of Marokopa and the surrounding areas will continue to see a Police presence in the area and we continue to encourage people to approach our staff if they have credible, current information that could lead to the safe return of Ember, Maverick and Jayda Phillips."

The children have been missing since December 12 2021, when they were taken by their father, Tom Phillips, to a location unknown but thought to be in Western Waikato within Marokopa or the surrounding areas.

"After three days of this phase of the operation we’ve had over 70 new reports of information on the subject of the missing people, via phonecall, email and personal approaches offering information," says Inspector Saunders.

"We’re continuing to assess the information and conduct follow-up enquiries."

On Tuesday Waikato Police announced a $80,000 reward for information that leads to the location and safe return of missing children Ember, eight, Maverick, nine, and Jayda, 10, Phillips.

Inspector Saunders says as a result of their enquiries Police have identified a number of credible reports that are being investigated further.

"We cannot provide details while the investigation is ongoing, but we are committed to getting a result as soon as possible.

"While Marokopa continues to be a focus for the ongoing investigation, enquiries are being caried-out in surrounding areas including Honikiwi and Otorohanga and we’re appealing for anyone who has observed suspicious behaviour in these areas in recent months to please contact Police."

Inspector Saunders says their message hasn’t changed.

"We continue to urge anyone with credible, current information that will lead to location and safe return of Ember, Maverick and Jayda to the right thing and tell Police what you know.

"Alternatively, you can email the dedicated email address op.curly@police.govt.nz or contact Police on 105 or online at 105.police.govt.nz clicking ‘Update Report’ and referencing file number 211218/5611."