UPDATE 4.53pm: Puriri Street and Manganui Road are reopen after a police operation earlier this afternoon.

"Police thank motorists for their patience."

EARLIER 3.52pm: Puriri Street and Maunganui Road are currently closed due to a police operation.

"This relates to a pre-planned search warrant," says a police spokesperson.

"Diversions are in place and motorists are advised to avoid the area if possible."

"Police thank motorists for their patience."

A SunLive reader at the scene says there are "armed police" at the scene.

"Police with road spikes and big guns on Maunganui Road," says another reader.