State Highway 30 between Military Road and Onepu Springs Road has been closed following a serious incident.
A witness at the scene says cordons are in place about 50 metres past the Military Road intersection on SH30.
She says a line of about five police cars are at the scene, turning vehicles around.
A police officer at the scene has advised motorists in the area the road is blocked, possibly for a few hours.
The road closure follows a robbery at a bank on Fletcher Avenue in Kawerau.
Initial reports indicate a male offender entered the First Credit Union bank just after nine this morning, armed with a weapon.
He left the premises a short time late with cash, no one was injured during the incident.
Police have not yet confirmed if the two incidents are linked.