A 61-year-old woman has been charged with murder, after the death of a man in Hamilton.

The victim was a 55-year-old, who died at a flat in Claudelands last night.

A neighbour told the Herald there was a party happening at the Te Aroha St flat when he arrived home just after 10pm, but it went quiet shortly after that.

The neighbour only realised something happened when he woke up on Sunday morning to see police officers at the property.

An older couple lived in the top flat, he said. "They kept to themselves."

He thought last night's wet weather had put a dampener on any parties.

Forensic scientists dressed in blue overalls can be seen through the windows examining the property.

Police officers remain on guard outside the cordoned off block of flats.

The woman will appear in Hamilton District Court tomorrow.