State Highway 1 has been closed in South Waikato after a three-car crash.
The crash happened near Karapiro, about 1km west of the SH29 turn-off to Tauranga, about 2.15pm.
Emergency service were on the scene by 2.45pm, a police spokeswoman said.
"Someone reported at least two cars had crashed, potentially three, and they were blocking the road and traffic," she said.
A Fire Service spokeswoman said two people were trapped and cutting gear was being used to get them out.