UPDATED: Hewletts Road is open following a motorbike crash earlier this morning.
While the road is open, Tauranga City Council is advising motorists to avoid the area is possible.
In a statement released just before 11am, council says "people should avoid travel between the Mount and the city for at least the next hour".
Police are working to clear the back log of traffic.
Meanwhile, police are investigating the circumstances of the crash which has left one rider in hospital with serious injuries.
A caller to the 0800 SUNLIVE news hotline says they saw the bike speeding down Hewletts Road moments before the crash.
The caller believed the bike was being pursued by police but this is yet to be confirmed.
A motorcyclist has crashed on Hewletts Road.
The road is blocked and traffic is backed up.
Police are at the scene of the crash on the Mount Maunganui side of the Harbour Bridge.
A caller to the 0800 SUNLIVE news hotline says traffic is flowing coming from Tauranga, but traffic is delayed heading from the Mount.
"I saw a bike fly past. It looked like it was being chased by police."
The caller says a few minutes later, he saw emergency service fly past.
Another caller says one of the bike's wheels has come off and is sitting about 20m from the crash scene.
We will update this story as soon as we have more information.