UPDATE 2.40PM: The road has been closed after a serious two-car crash on SH27 near Matamata.
Emergency services are on site attending to one person in a critical condition.
"Due to a serious incident in this area the road is closed," says a police spokesperson.
"Please delay your journey or use an alternative route."
From Southbound traffic: Sh26, right into Ngarua rd, left into SH27 Northbound traffic: Right into Ngarua rd, left onto SH26 to Sh27.
To Southbound traffic: Left onto Sh26, right into Ngarua rd, left into SH27 Northbound traffic: Right into Ngarua rd, left onto SH26 to Sh27.
EARLIER 2.30PM: A serious collision between two vehicles has occurred on State Highway 27 near the Tatuanui roundabout, near Matamata.
One person is in a critical condition and another has moderate injuries.
Road users are advised to seek alternative routes or to delay travel.
The Serious Crash Unit has been advised.