Police have confirmed that armed officers arrested a man on the Waihi Road overbridge at about 9.40am this morning.

A witness who contacted SunLive's newsroom described a blue HiLux being followed by three police cars before it was stopped when it encountered three more police cars blocking the overbridge.

Photo: File.

Police were seen pointing pistols or tasers and the driver got out of the ute with his hands up, says the witness.

Police Inspector Karl Wright-St Clair says armed police stopped the vehicle as a result of an incident at a Brookfield address earlier this morning.

The man was believed to have been armed with a knife.

'This man is currently helping police with their enquiries and no-one else is being sought in relation to the incident,” says Karl.

'Police will not be commenting further on the incident at this time.”