Visitors to the Rotorua Ngongotaha Rail Park got a bit of a surprise when the park's wooden station started "billowing smoke".
Fire crews were called to the scene after sparks from the miniature steam train started smouldering in the dry debris underneath the 2m by 5m building.
Rotorua Fire Brigade Senior Station Officer Colin Rolfe said two trucks were dispatched about 2.15pm.
Park manager Ann Egglestone said the smoke came from under the station platform and did not ignite.
"One of our volunteers noticed smoke billowing out of the sides of the platform and then it was all on from there.