A woman has been charged with murder after two children were found dead in a Ruakākā home yesterday.

Police were called to a property in Peter Snell Drive at around 6.25am where the children, aged one and four, were found dead.

The 25-year-old woman will appear in Whangārei District Court today, charged with two counts of murder.

In a statement, Northland police said they would continue to support the Ruakākā community through the difficult time.

"This is an incredibly distressing situation for the family involved, along with first responders and police who attended."

There will be an increased police presence in the area for the next few days.