People are being warned to drive carefully with several reports of vehicles sliding off Bay of Plenty roads due to ice.

State Highway 30, between Kawerau and Te Teko, is currently closed due to a crash blocking the highway.

Frosty and slippery conditions are being reported in the Bay.

There are no reports of serious injuries, but the NZTA says the road will be closed until the crash scene has been cleared.

People are being advised to use Kawerau Road back through to SH30 as a detour route.

SH30, between Kaweru and Te Teko, is currently closed due to a crash. Image: NTZA.

'Just a reminder to all motorist about the icy roads this morning in the BOP, especially SH1, SH5 and SH30,” Bay of Plenty Police report on their Facebook page.

'Reports of extremely slippery conditions resulting in vehicles sliding off the road. It's important to reduce your speed and increase your following distance. Be safe and drive to the conditions.”

In Tauranga, police are also responding to a crash on State Highway 2, near the Kairua Road off-ramp.

A vehicle appears to have hit a barrier. No other information is available at this time.

The MetService says it's currently 3.2 degrees in Tauranga and the high is expected to reach about 15 degrees.

Motorists are advised to drive with extra care as there is an ice warning for all State Highways in the Bay of Plenty area.

— NZTA Waikato/BoP (@NZTAWaiBoP) July 3, 2016