Traffic was delayed for hours on SH1, south of Taupo, after a truck caught on fire and diesel was spilt.
Emergency services were called to the scene between the East Taupo Arterial and Tawha Rds at 1.30pm yesterday.
Fire service communications spokesman Jaron Phillips said crews from Taupo and Rotorua attended. There were no injuries to the driver.
"It's a truck fire but compounding that is a diesel spill from the truck and it seems to be quite close to the lake," Mr Phillips said. "The truck lost an axle which led to the fire and when the first crew arrived it was well involved."
The fire was extinguished about an hour later and a fire investigation was underway.