Police and ambulance are responding to an unfolding incident in the suburb of Chartwell in Hamilton.

St John ambulance says they are nearby the scene, with one ambulance, on rapid response unit, and a operations manager on standby.

A police eagle has been circling above Chartwell, according to a flight tracking website.

A local resident, who didn’t want to be named, said she saw about 6 to 10 armed police, and 4 to 5 police cars, around the corner of Comries Road and Bellmont Road.

She said a helicopter has been circling around for about half an hour, since around 8pm.

The resident said when she approached police to ask about what’s going on, an officer told her it’s a “dangerous” situation and asked her to leave.

- More to come.